Back Matter Source: The Scientific Monthly, Vol. 23, No. 5 (Nov., 1926), pp. ix-xvi Published by: American Association for the Advancement of Science Stable URL: http://www.jstor.org/stable/7432 . Accessed: 07/05/2014 15:53 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 169.229.32.136 on Wed, 7 May 2014 15:53:53 PM All use subject to JSTOR Terms and Conditions
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Back MatterSource: The Scientific Monthly, Vol. 23, No. 5 (Nov., 1926), pp. ix-xviPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/7432 .
Accessed: 07/05/2014 15:53
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.
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JOHN C. HEMMETER, M.D., Baltimore Louis FAUGERES BISHOP, M.D., New York Honorary President Presiden t
American Society of Medical History Meets in the Editorial Offices of Medical Life
EXTRACTS FROM THE BY-LAWS
1. MEMBERS: Membership is open to those who have contributed to the cause of medical history, either as teachers, organizers, publishers, edi- tors, or authors.
2. ASSOCIATE MEMBERS: Associate membership is extended to all who are interested in the history of medicine. Associate members may ap- ply for full membership upon the publication of two of their papers in the official journal of the Society.
3. DUES: There is no initiation fee. The annual dues for members and associate members are five dollars, which includes subscription to MEDICAL LIFE, the official journal of the Society.
Apply for membership by filling out the following blank.
AMERICAN SOCIETY OF MEDICAL HISTORY,
12 Mt. Morris Park, West, New York City.
I hereby apply for membership (or associate membership) in the American Society of Medical IHistory. Upon notification of my election I will remit the annual dues.
Professional qualifications .................................................................................................
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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 he pleased with its Quiet, Homelike and Refined Atmosphere, its Comfortable Rooms and Mloderate Rates. Every IRoom with Connecting or Private Bath
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Hotel Continental Center of New York's Activities
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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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{/. L ?r 4 ~vitd fiOesI in k->t9, t>L > 4 FIREPROOF
~~ Broadway v N' ~~~AT
~~ ~ N 29th
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Ae nue.
Thenree,
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0 'n4 tral Ter- minal. Con- venient to0
IL - -- - ~~~steamship
PER DAY Single rooms with running water.... $2.00 and $3.00 Sinigle roomns 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
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Rebuilt, High Grade Surveyors' Instru- ments. We have a small quantity at attractive prices. Write us your wants.
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Marine Biological Laboratory Woods Hole, Mass.
Biological Material I. Zoology. Preserved ma- terial of all types of animals
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4. Microscope Slides in Bacteriology, Botany and Zoology.
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Catalogue. furnished on applsiatson to
GEORGE M. GRAY, Curator Woods Hole Massachusetts
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for you men who have the fun of building your own radio apparatus and who desire more information than the laymnan on the parts you use, Acme Ap- paratus should have a special appeal.
The Acme Apparatus Company are specialists in Amplification without Dis- tortion and have since the beginning of Broadcasting been carrying on extensive research with the idea in mind that it is "How well you can hear" that really counts in radio.
Acme Apparatus is constructed by skilled workmen long in the employ of the Company and who are under the direct supervision of some of the country's lead- ing radio engineers.
The best of material and workmnanship is used in the construction of Acme Apparatus and is tested throughout the different stages of manufacture. Should Acme Apparatus be found defective due to poor material or workmanship, it is fully/ guaranteed and will be replaced or repaired without charge.
Two interesting booklets have beent prepared which will give you the desired technical information on the latest circuits and apparatus for Amplification with- out Distortion and Power Supply for Radio Sets as written by a leading engineer. Either of the booklets, Amplification without Distortion or Power Supply for Radio Sets can be obtained by sending lOc (stamps) (coin) to Department A-1.
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ACME APPARATUS Company, 37 Osborn Street Cambridge, Mass.
Pioneer Transformer and Radio Engineers and Manufacturers
ACME ,'for ampltticefion
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For any degree of Magnification from 3oX to 200X The entire stand of this new microscope is a one-piece
hollow casting of aluminum alloy which makes the instru- .ment rigid and at the same time light in weight. Net i ~~~~~weig}lt I I oz.
The initial magnification is increased by elongating the -draw tube and the magnifications thus obtained are read off from the graduations on the tube.
_The optical systein consists of an orthoscopic eye-piece and a standard achronmatic objective which insures good definition.
May also be used for micro-projection drawing and photomicrography.
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The New Spencer Film Slide Service and Projector
Presented for Educators by Educators A tremelndously enthusiastic reception has greeted
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For the accurate control of the exact degree of acidity or alkalinity
In Water Purification The purification of water is Since the exact degree of
a matter of importance in acidity can be controlled only every community possessing by measuring the hydrogen a municipal water supply. ion concentration, the value And this extensive field is of LaMotte Comparators in but one of many in which the this work is readily appar- value of the LaMotte Roulette ent. LaMotte Comparators,- Comparator is almost unbe- either the Block Model or the lievable. more convenient Roulette,-
It is well known to all measure the exact degree of familiar with water purifica- acidity or alkalinity in defi- tion that maintaining the cor- nite figures which can be re- rect degree of acidity during corded and duplicated by the the various steps of the same or different workers. process gives better coagula- They are highly accurate and tion, maximum efficiency of convenient, yet so simple that chemicals at minimum cost, they can be used effectively increases the rate of filtration, by the average workman. insures higher bacterial effi- Many water works consider ciency and reduces corrosion them an indispensable part of in the distributing system. their equipment.
LaMotte Chemical Products Company 422 Light Street Baltimore, Maryland, U. S. A.
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Wtycoth Stormoguides are reiale tempeature. Epcand y adjutable forat- barometers, wth2 horealn wathaner in- f tude. s very superi-dor instrument
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quest.l
Y ylorsInstrumentCompank?s ROCHESTER, N. Y., U. S. A.l
Canadian Plant Tycos Building, Torontohe Manufacturing Distributors in Great Britain: Short & Mason, Ltd., Londonsl
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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 c 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.
The objectives afford 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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First Real Advance in Barometers-A Big Steb Forward!
"Trying to compare the Paulin AlItimeters with the old standard aneroids, one seems to be at a loss, because there simrnply cannot be applied any comparison. The Paulin Altimeter seems, to me, so far superior that no other aneroid can come into consideration, where reliable quiok readings are required."
J. V. D. GRACHT (Geologist).
PRECISION ALTIMETER One man 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 circular "-A"
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