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Back Matter Source: The Scientific Monthly, Vol. 24, No. 1 (Jan., 1927), pp. ix-xvi Published by: American Association for the Advancement of Science Stable URL: http://www.jstor.org/stable/7806 . Accessed: 01/05/2014 23:32 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . American Association for the Advancement of Science is collaborating with JSTOR to digitize, preserve and extend access to The Scientific Monthly. http://www.jstor.org This content downloaded from 130.132.123.28 on Thu, 1 May 2014 23:32:31 PM All use subject to JSTOR Terms and Conditions
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Page 1: Back Matter

Back MatterSource: The Scientific Monthly, Vol. 24, No. 1 (Jan., 1927), pp. ix-xviPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/7806 .

Accessed: 01/05/2014 23:32

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact [email protected].

.

American Association for the Advancement of Science is collaborating with JSTOR to digitize, preserve andextend access to The Scientific Monthly.

http://www.jstor.org

This content downloaded from 130.132.123.28 on Thu, 1 May 2014 23:32:31 PMAll use subject to JSTOR Terms and Conditions

Page 2: Back Matter

THE SCIENTIFIC MONTHLY-ADVERTISEMENTS ix

The Drum Nosepiece for use on the

Bausch & Lomb Wide Field Binocular

MICROSCOPE

The Drum Nosepiece, a new design for paired objectives, permits rapid change of magnifications. It contains 3 pairs of objectives of different powers held in parfocal position. Six powers are instantly available.

Another feature which makes this model easy and comfortable to use is the high eye point. It makes the image come up to meet the eye," which in-

sures seeing the full field. The field is large, excellently defined to the edges and highly illuminated.

_h The objectives aff ord long working distances.

This model has decided advantages because the body can be attached to five different stands.

Literature on the Drum Nosepiece is in preparation

Bausch & Lomb Optical Company 63 3 St. Paul Street Rochester, N. Y.

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Page 3: Back Matter

x THE SCIENTIFIC MONTHLY-ADVERTISEMENTS

"A Homey Hotel for Home Folks" The WVESTMINSTER

Opposite Columbia University 420 WEST 116TH STREET, NEW YORK

Located on a quiet sunny street, in what is considered the finest residential section of New York, overlooking Columbia University, Morningside Park, Riverside Drive, Central Park, Cathedral of St. John the Divine and the Hiudson River and its Palisades.

THE WESTMINSTER is delightfully attrac- tive both inside and out and offers unusual advantages to Home-Lovers desiring a Real Home in an Atmosphere of Refinement either for a short period or as a permanent residence. It is convenient to all means of transportation and due to its high elevation all rooms receive ani abundance of light, air and sunshine.

Come to THE WESTMINSTER for a little while. We are proud of what we have here, for you will find it nowhere else. Whether your stay is a day, a month, or a year, we know you will be pleased with its Quiet, Homelike and Refined Atmosphere, its Comfortable Rooms and Moderate Rates. Every Room with Connecting or Private Bath

AMERICAN PLAN EUROPEAN PLAN (IncluLding 3 Meals) (Without Meals)

DAY WEEK DAY WEEK Single . $4.00 up-$25.00 up $2.ir0 up-$15 00 up Double . 8.00 up- 45.00 up 3.50 up- 21.00 up

Parlor, Bedroom, Bath, with meals for 2 persons, $56 week up

Parlor, 2 Bedrooms, Bath, with meals for 3 persons, $75 week up

Breakfast 75c.-Luncheon 75c.-Dinner $1.25

"Comfort without Extravagance" Booklet mailed on request

Hotel Continental Center of New York's Activities

BROADWAY AND 41st STREET

Finest location to live when in town

300 Rooms 300 Baths $2.00, $2.50 and $3.00 per day

Double, $3 to $6 per day

Rooms of unussual large size

Between Grand Central and Penn Terminals

Send for Free Map of New York

HENRY S. DUNCAN, Proprietor

HOTEL

IFLANDERS Just East of Broadway

133-135 West 47th Street 134-136 West 48th Street

A modern high class 15-story hotel very close to Times Square and within a few minutes to all leading Theaters and Shops.

Room with running water $2

Rooms with bath $2.50 Up

Special rates for long or short periods

GEORGE SANBORN, Prop.

PHILADELPHIA CHESTNUT and 39th STREET

Hotel Pennsylvania

Fireproof

Unrestricted Parking 6oo Rooms 500 Baths

Rooms with running water from $2.50 per day

Rooms with private baths and showers from $3.50 per day

Food and Service the Best Near West Philadelphia Station,

Pennsylvania Railroad

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Page 4: Back Matter

THE SCIENTIFIC MONTHLY-ADVERTISEMENTS xi

The

ABC Of

IHydrogen Ion control

Free on Request

VALUABLE AND PRACTICAL INFORMATION

ON

The Application of Hydrogen Ion Control in Science and Industry

A clear and comprehensive explanation of Hydrogen Ion Con- trol and its application in many important branches of industry, such as:

Pulp and Paper Manufacturing Dyes and Pigments Sugar Refining Chemical Manufacture Tanning of Leather Industrial Wastes Water Purification Nickel Electroplating Sewage Disposal Acid Zinc Plating

and many others

Believing that a wider understanding of the practical value of Hydrogen Ion Control in science and industry will ultimately benefit our business, we will gladly send a copy of this book to any interested person on re- quest. Write today for your copy.

LaMotte Chemical Products Company 422 Light Street Baltimore, Maryland, U. S. A.

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Page 5: Back Matter

xii THE SCIENTIFIC MONTHLY-ADVERTISEMENTS

$~<r< ,>\ > >FIREPROOF

Broadway A~~A

-~29th ~~1

EJ ~New York

K staIOn eblo

Single ~ rooms wihrunniwtr..f2.0ad h30

Avyen ue.

Single~~~ ~~~ hom wit bat ersoe.. 0ad40 Double~ ~ ~~~~~lok fromih unn atr..400adS0

Penn. Sta-

Double~ ~ ~~~~~lok romfromaho soe .0,6 ad70

tion. Sub- wa y con-

I ~~nects with ~4 PLVIj Grand Cen-

ci 1:? ~tral Ter- minal. Con- venient t o Stores,

_ ____ ~~~~~Theatres, ~~ I1A~~~2 ~~ steamship

~~~~~~~ ~~~~~piers.

rERl DAY Single rooms with running water .... $2.00 and $3.00 Single rooms with bath or shower .... 3.00 and 4.00 Double rooms with running water .... 4.00 and 5.00 Double rooms with bath or shower 5.00, 6.00 and 7.00 Parlor, Bedroom and Bath ......10.00 to 12.00

Booklet and Map of New York Upon Request. For Reservations. Wire at Our Expense

PAUL A. McGOLRICIE DAVID F. CUJLLEN

FOR THE

Biological Sciences Naturalists' Supplies Microscope Slide Preparations Preserved Material Display Material Lantern Slides Charts, Botanical and Zoological Microscopes, Microtomes and

Accessories Dissecting Instruments Laboratory Glassware Chemicals Bacteriological Reagents

Catalogue pertaining to any of the above may be obtained on request.

Prompt Guaranteed Service k I Quality

New York Biological Supply Co. General Supplies for the Biological Sciences 34 UNION SQUARE NEW YORK CITY

LAMBRECHT POLYMETER

Registers temperature, relative hu- midity, maximum vapor pressure, maximum eapoacity of water vapor of a cc of air, Hygro number, the dew point temperature, etc. May also be used to forecast weather.

-1'

A::

No. 3642 Complete with instructions ........... $8.25

PAL9 COMPANY .Apparatus for Indutstrial and Laboratory

Use

153 West 23rd Street, New York, N. Y.

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Page 6: Back Matter

THE SCIENTIFIC MONTHLY-ADVERTISEMENTS xiii

Rome aizd persugade the X t 1 W

over aogfain, their city. Once < , A Y / \; \ I \ when the gold was beinlg w ) v( ;\1 weighedl out aznd thje thrifty | c<i ri sons of Itly waited for the --,sf 52 nS. scales to balancex, Attalus, /{ fv the Hugn, tossedf his sword on R 3 s~A^ the weight sidRe aznd toldf s7 1wA1zr themn to addG a bit mnore for v\lQTt,11i

goodS luck. We cazn hazrdly _ I E recommend! that methodX of

neasurement today_

<_ _ Sg,4y instrument thagt gives mnan a standardt mfteasurement must be

The fabric of national and business life today is trust- whenever that trust is betrayer we have wars, strikes and revolutions. Accuracy aad honesty enter even more vitally into the complicated balance of physical health and the intricate process of mrodern mranufacture; a few degrees

diwerence in temperature are the diference between human life and death; and in industry the difference between successful oanufacture and ruin. The manufacture of instruments which record and control

e so important a thing as temperature oust be like Caesar's wife. The fact that today most of the scientific instru-

S m~~~~~~fents made in this country for such purposes are rfade by d tt m d of Tycos is an indication of the reputation earned by this com- Jpaiy over a period of seventy years.

o u S; E~~~.1ytor/srlefopnSI z ~~~~~CANADIAN PLANT MANUFACTURING DISTRIBUTORoS IN GREATl

= =, w ~~~~TYCOS BUILDING, TORONTO BRITAIN, SHORT & MASON, LTD., LONDON

THDE S EIXTH SENDSAE OF INDUSBTL

(wos ydos ie n terature instrue tent

INDICATlIfe an Eath;andIn)INdutr th diferNcebetwenG

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Page 7: Back Matter

xiv THE SCIENTIFIC MONTHLY-ADVERTISEMENTS

Marine Biological Laboratory Woods Hole, Mass.

Biological Material x. Zoology. Preserved ma- terial of all types of animals

. ?t4 for class work and for the * museum.

2. Embryology. Stages of some invertebrates, fishes (including Acanthias, Amia and Lepidosteus), Am- phibia, Reptiles and some mammals. 3. Botany. Preserved ma- ter,ial of Algae, Fungi, Liv- erworts, Mosses, Ferns and Seed Plants.

4. Microscope Slides in Bacteriology, Botany and Zoology.

5. Life Histories, Germination Studies and Natural History Groups.

Catalogues furnished on applsoato to GEORGE M. GRAY, Curator

Woods Hole Massachusetts

The Only Scientifically Correct Sleeping Bag Made!

Fiala Patent Sleeping Bag You can sleep outdoors in perfect comfort

Made like the fur of an animal, it retains body heat, but not the mois- ture. No dead air spaces to become f oul or

- -- ~~soaked, as in a closely woven or filled fabric. Weighs about $25 lbs.

Read What They Say: -,,,.':'::. rj 5he Fiala was the only one that

4 was satisfactory; all the others - '..,, we had to throw away on account

5 of accumulation of moisture and Write id vermin."-(From leader of North

for Ji 4Y ou have the best light-weight Folder - bag made."-(Dr. C. P. Fordyce.) "6 A" 9 Y Send for other letters and

convintce yourself.

GURLEY'S Transits, Levels, Alidades, Meters & Registers, Altimeters, Microscopes & Binoculars.

Outfits for Explorers, Scientists, etc.

Anthony Fiala, 25 Warren St., New York

The New Spencer Film Slide Service and Projector

Presented for Educators by Educators A tremendously enthusiastic reception has greeted

the new Spencer Film Slide Service prepared for edu- cators by educators. The library includes many sub- jects, all edited and arranged in the order of the cur- riculum.

Pictuires follow one another on rolls of safe unbreak- able film slides. You can't mix them up-yet pictures change instantly, forward or back, by a single turn of a knob. And the cost of this new service is only one- tenth that of glass slides.

BIJFFALO, N. Y. The new Spencer film slide delineascope is simple, compact and easy to use. You can operate it with one

a sout the new Spencer m F ilm Slide hand as you lecture. WVith a Trans-Lux daylight screen

Service and Delineascope. you don't even have to darken the room. Send the coupon and see how this new Spencer Film

Name .*. Slide Service will help you in your class-room work. Street ..............................

SPENCER LENS CO. City .. Enstitution.........442 Niagara Street Buffalo, N. Y.

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Page 8: Back Matter

THE SCIENTIFIC MONTHLY-ADVERTISEMENTS xv

Our Mobile Earth. By REGINALD A. DALY. 342 pp. $5.00. Charles Scribner 's Sons.

Startling and illuminating deductions and hypoth- eses of nioderla geology that bring out of the shadows the successive steps of nature in the making of the habitable world. It is a book of scientific impor- talnce and yet it is written in an interesting and non- technical fashion.

How Insects Live. By PROPESSOR WALTER HOus- LEY WELLHOUSE. $5.00. The Macmillan Com- pany, N. Y.

An elementary entomology. A book which reveals in a fascinating way the personalities and behavior of members of the insect world. It is concluded with suggestions for collecting and preserving in- sects, and keys for distinguishing the principal ordlers aLnd families.

The Nature of the World and of Man. By sixteen scientists, members of the University of Chicago Faculties. $4.00. University of Chicago Press, Ill.

This book is a cooperative survey of all science, an ouitline of our knowledge of the physical and bio- logical world and man's relative position in it.

The Story of Philosophy. By WILL DURANT.

$5.00. Simon and Schuster, Inc., N. Y.

Acclaimed by book-critics, book-creators, book- sellers and book-buyers as the long-awaited humani- zation of plhilosophy, " The Story of Philosophy " looms up as olie of the genuiliely distinguished books of the year.

A Manual of Radioactivity. By GEORGE HEVESY AND FRITZ PANETH. Translated by ROBERT W. LAWSON. $5.00. Oxford University Press, N. Y.

This book, by two of the leading authorities in the field, is a manual for students of physics, chemistry anid medicine, who wish to obtain a thorough ground- ing in radioactivity. There are many illustrations aniid a full bibliography.

The Pulse of Progress. By ELLSWORTH HUNT- INGTON. 341 pp. $5.00. Charles Scribner 's Sons.

A deeply initeresting study of the ways in which racial character is moulded and modified by environ- ment. Dr. Huntington is professor at Yale Univer- sity anid is eminently fitted to take up these ques- tion s.

Hydrogen Ion Concentration. By LEONOR MICH-

AELIS. $5.00. Williams and Wilkins Co., Md.

The first English edition of three volumes consti-

tuting the latest edition of Michaelis's classical work on hydrogen-ion work. Presents the physico-chem- ical principles.

Alcohol and Longevity. By RAYMOND PEARL.

$3.50. Alfred A. Knopf, Inc., N. Y.

An authoritative treatment of a vital problem. The

effect of alcohol on the race as well as on the indi-

vidual is discussed.

The advancement of education as a science

The adjustment of our schools to the needs of modern life

These two phrases are an expres-

sion of the vital interests of every

progressive scientist concerned

with the development of educa-

tion. They are also a statement

of the objects of SCHOOL AND

SOCIETY, a weekly journal

covering the field of education

and its public service.

If this much-quoted and widely-

discussed periodical is not already

a regular visitor at your office,

you will find the speeial short-

time offer a convenient way of

making its acquaintance. A dol-

lar bill, which may be mailed at

the risk of the publishers, will

bring you thirteen issues.

$5.00 a Year-15 Cents a Copy

THE SCIENCE PRESS Grand Central Terminal, New York, N. Y.

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Page 9: Back Matter

xvi THE SCIENTIFIC MONTHLY-ADVERTISEMENTS

BROOKLYN BOTANIC GARDEN MEMOIRS VolUme 1: 33 contributions by various authors on genetics, pathology, mycology,

physiology, ecology, plant geography, and systematic botany. Price $3.50 plus postage. Volume II: The vegetation of Long Island. Part 1. The vegetation of Montauk,

etc. Pub. I923. io8 pp. Price, $i.oo.

AMERICAN JOURNAL OF BOTANY Devoted to All Branches of Botanical Science

Established I9I4. Monthly except August and September. Official Publication of the Botanical Society of Amnerica.

Subscription, $7 a year for complete volumes only (Jan.-Dec.). Parts of volumes at the single number rate. Volumes I-i3 comnplete, $io6. Prices of odd volumes on request. Single numbers, $i.oo each, post free. Foreign postage: 40 cents.

ECOLOGY Devoted to All Forms of Life in Relation to Environment

Established i920. Quarterly. Official Publication of the Ecological Society of America. Subscription, $4 a year for complete volumes only (Jan.-Dec.). Parts of vol- umes at the single number rate. Back volumes I, 2, and 4-7, $5.oo each.

Single numbers, $I.25 post free. Foreign postage: 20 cents.

GENETICS A Periodical Record of Investigations bearing on Heredity and Variation

Subscription, $6 a year for complete volumes onlv (Jan.-Dec.). Parts of volumes at the single number rate. Single numbers, $1.25 post free. Back volumes 2-Io only, $7.00 each. Foreign postage: 5o cents.

Orders should be placed with THE SECRETARY, BROOKLYN BOTANIC GARDEN

iooo Washington Ave. Brooklyn, N. Y., U. S. A.

Publishers: G. E. STECHERT & CO., New York-WILLIAMS & NORGATE, London- FELIX ALCAN, Paris-AKAD. VERLAGSGESELLSCHAFT, Leipzig-NICOLA

ZANICHELLI, Bologna-RUIZ HERMANOS, Madrid-RENASCENCA PORTUGUESA, Porto-THE MARUZEN COMPANY, Tokyo.

INTERNATIONAL REVIEW OF SCIENTIFIC it o r ' b T A SYNTHESIS

Published every month (each number containing 100 to SCIENTIA,, ~ ~~~~~~~120 pages) Editor: EUGENIO RIGNANO

IS THE ONLY REVIEW the contributors to which are really international. IS THE ONLY REVIEW that has a really world-wide circulation. IS THE ONLY REVIEW of scientific synthesis and unification that deals with the funda-

mental questions of all sciences: the history of the sciences, mathematics, astronomy, geology, physics, chemistry, biology, psychology and sociology.

IS THE ONLY REVIEW that by means of enquiries among the most eminent scientists and authors of all countries (On the philosophical principles of the various sciences; OnA the 'most funda'mental astronomical and physical questions of current interest, and in particular on relativity; On the contrib'ution that the different countries have given to the development of various branches of knowledge; On the more iXmportant biological questions, and in particular on vitalism; On the social question; On the great international questions raised by the World War), studies all the main problems discussed in intel- lectual circles all over the world, and represents at the same time the first attempt at an international organisation of philosophical and scientific progress.

IS THE ONLY REVIEW that among its contributors can boast of the most illustrious men of science in the whole world. A list of more than 350 of these is given in each number.

The articles are published in the language of their authors, and every number has a supple- ment containing the French translation of all the articles that are not French. The review is thus completely accessible to those who know only French. (Write for a free copy to the General Secretary of "Scientia," Milan, sending 12 cents in stamps of your country, merely to cover packing and postage.

SUBSCRIPTION: $10, post free OFFICE: Via Carducci, 22d Milan (116) General Secretary: Dr. Paolo Bonetti

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Page 10: Back Matter

MAGNIFIERS ( ARL ZEISS Magnifiers, ranging from the popular

21/2x Folding Pocket Glass to the 27x Anastig- matic Loupe for dissecting work, are well and favor- ably known the world over.

Their comparatively large field of view, sharp defini- tion and entire absence of marginal distortion and color aberration result in greater accuracy, celerity and econ- omy for general work.

An unusually complete variety of styles and magnifica- tions is available at prices consistent with their high- grade workmanship and fine quality of material.

CARL ZEISS, INC. 485 Fifth Avenue

New York Pacific Coast Branch: 728 South Hill Street, Los Angeles, Calif.

..-i I IV

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Page 11: Back Matter

Laboratory Apparatus and Supplies

RI~~~~~~~~

PARIS PAN-AMERICAN EXPOSITION: EXPOSITION:

Eight Awards and Medals Gold Mezdal

Our General Laboratory and Museum Supplies Include: Scientific Apparatus and Instruments, Chemicals, Anatomical Models, Osteological

Preparations, Natural History Specimens and Preparations, Wall Charts, Mu- seum and Naturalists' Supplies, Glass Jars, Microscopes and Accessories.

Museum Cabinets (Yale Style) Biological and General Laboratory Supplies

THE KNY-SCHEERER CORPORATION OF AMERICA Dept. of Natural Science, 119-I25 7th Ave.

G. Lagai, Ph.D. (Cor. I7th St.) New York City

You Will Never Go Back to the Old Aneroids, When You Tru a

4~~~~~~~~~~~~~~~~4

Trying to compare the Paulin Altimeters with the old standard aneroids, one seems to be at a loss, because there simply cannot be applied any comparison. The Paulin Altimeter seems, to me, so far superior that no other aneroid can come into consideration, where reliable qusick readings are required."

J. V. D. GRACHT (Geologist).

PRECISION ALTIMETER One mnan with a " Paulin Altimeter" can make a reconnaissance survey and place his contours accurately, in less time than two men could do it in the old way with level and rod. I. Accurate as a Mercurial Barometer. 2. Anyone can read the instrument with-

out mathematical corrections. 3. Light and Portable. Can be safely

shipped any distance without losing accuracy.

4. Cost about half of a mercurial Ba- rometer.

5. Used by U. S. Engineers, Oil Com- panies, Railroads, Highway Commis- sions, etc.

Write for circmlar ".A"

FIALA OUTFITS, Inc. Eastern Representatives

25 Warren St. New York City Complete Equipment for Engineers, Ex-

plorers, Camping, Touring, etc.

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