Science and TechnologySource: The Scientific Monthly, Vol. 72, No. 6 (Jun., 1951), pp. iv-vPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/20277 .

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vr Sclence and Technology - (From the Month's News Releases)

Capper A 4-ounce device about the length of a king-sizec

cigarette, which will uncap and recap a bottle witl equal ease, is also a practical ice cracker. Since bottles may be refilled with other liquids and recapped, the gadget is useful for camping trips and other travel.

Collapsible Drum A new 55-gallon reusable drum of synthetic fabric

and rubber, suitable for shipping oils, greases, fats, acids, paints, emulsions, soaps, dry powders, and certain phar- maceutical and industrial chemicals, can be collapsed after emptying. More than 2,500 of the collapsed drums can be shipped in a standard box car that will hold only 300 rigid drums. The addition of a metal plate makes it possible to empty the drum from an overhead hanging position, rounded corners and light weight make it easily handled, and it needs no venting.

The Insects in Your Life Garden insecticides should not be laid down in a mist

on the outside of the plant. A new sprayer delivers a fine, fan-shaped, forceful spray under leaves, down, or sideways against walls, without soiling plants, and may be used for treetops. Fully loaded the sprayer weighs only 3 lbs. and delivers 4 gallons of solution when at- tached to a garden hose. A similar sprayer has a 2-gallon capacity.

Yosemite Chemical Company, 1040 Mariposa St., Sar Francisco 7, is marketing Dispercicide, a dry aerosol bomb for space-killing and residual control of adult moths, bed- bugs, bean weevils, cockroaches, fleas, flies, gnats, grain weevils, midges, mosquitoes, silverfish, and spiders. It comes in a self-dispersing disposable container and acts in about four hours.

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Portable drawing board of styrene consists of single molded piece of clear plastic, 9?4" x 12%4". Corner clamps recessed into the plastic hold paper, thus elimi- nating thumbtack holes. Two metal straight edges are retractable, and 30-, 60-, and 45-degree triangles are stored in recesses underneath the board.

Crosshatch the Easy Way

Twenty-three sizes and styles in a plastic perforated drafting and lettering triangle, ranging in price from 55 cents to $1.70, ensure rapid drawing of parallel guide lines of different heights and both whole and fractional dimen- sions. Crosshatching is simple.

Ever-ready pH Meter A pocket-size meter and probe unit permit instant,

on-the-spot pH determinations anywhere. A hand-and- shoulder-strap case allows the instrument to be slung over the shoulder or hung around the neck. Meter is scaled from 2 to 12 pH, and a simple adjustment gives read- ings from 0 to 14, with an accuracy of 0.1 pH. Hearing- aid---type batteries provide up to 1,300 hours of opera- tion.

See 9,000 Stars

A new model of the Zeiss planetarium projector, an instrument that has not been in production since before the war, has become available. Only a limited number of contracts can be accepted in any one year.

Title Shooter A titler with complete accessory kit, for advanced

amateur and T. V. film men, is available for 16-mm, 8-mm, and still cameras up to view camera size. It is designed for use in both a horizontal or a vertical position. Inexpensive, it is said to be equal in scope and application to much higher priced 35-mm professional titlers.

New Paints A washable, streak- and mar-resistant flat wall paint

comes in nine basic deep colors, which may be intermixed to achieve a wide range of decorator colors.

Nontoxic, flashproof, water-repellent paints capable of withstanding temperatures up to 1,9000 F. may be used as finishes for all types of wood or metal surfaces. Alu- minum, white, and gray are standard colors, and others may be obtained on special order. One coat is all that is usually needed.

Poison Ivy Remedy A salve, based on zirconium carbonate, said to act as

a neutralizer against the irritant in the poison ivy plant, has received Food and Drug Administration approval, and is reputed to be effective in about 90 per cent of cases. It also may prove useful in treatment of athlete's foot and some industrial dermatoses, as well as for a per- sonal deodorant. Available in tubes and small jars.

Distinctive Fiber Dupont's new polyester fiber, Dacron, formerly "Fiber

V," will probably be used in suitings and all types of outerwear, particularly because of its wrinkle-resisting and press-retention properties when wet, moist, or dry. It launders with little or no shrinkage or wrinkling. Al- though a few problems remain to be solved--"pilling," for example, and dyeing-commercial production is scheduled for Dupont's new plant now going up at Kin- ston, N. C. Dacron is not chemically related to nylon.

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Warning Label A pressure-sensitive tape with the radioactivity symbol

and the word RADIOACTIVITY printed in magenta on a yellow background (approved radiation warning colors) is made so that small pieces can be torn off and put on any surface. Each complete design is one and one-half inches long. It is sold in rolls 215 feet long, one inch wide, that can be used on a standard holder.

Forced Feeding Pump Designed to ensure adequate fluid and food intake for

patients who cannot or will not eat because of bad burns or other injuries, the BSM Pump developed in the De- partment of Plastic and Mvaxillofacial Surgery of the University of Texas Medical Branch, Galveston, requires only a small amount of routine care and supplants drip apparatus and syringe feeding. Food is blended in a War- ing mixer so that the viscosity is about that of plain Petrolagar, and is kept in a vacuum bottle to guard against spoilage. The patiernt may eat solid food accord- ing to appetite without interfering with the pump feed- ing.

Touch and Go Colorless and ordorless ink and stain remover comes in

a 2-ounce applicator bottle with a small perforation in the top that allows just enough fluid to flow as needed. Cleaning solution will remove all types of ink, fruit, vege- table, and nicotine stains from the hands, and ink from clothing and furniture.

Wood Preservative Cellu-san can be applied by dip, spray, or brush, is

available as a liquid concentrate, and is completely safe to handle. It will, according tc) the manufacturer, Fungi- trol Chemicals, Inc., lengthen the life of wooden pallets, boxes, baskets, and crates and protect them from mold, mildew, and rough handling. It is water-repellent, im- proves nail-holding power, and preserves wood resiliency.

Tough Toweling Medico paper toweling is so strong that it won't fall

apart even when wringing wet: and is lint-free and fully absorbent. It comes packed in 100-foot rolls in portable dispenser boxes with a metal cutting edge. A unit of 12 boxes includes a 30-inch high wood-grained receptacle for used towels.

Vacuum Calculator F. J. Stokes Machine Company, 5900 Tabor Rd., Phila-

delphia 20, is offering for free distribution a slide rule designed for quick calculations in vacuum research and processing work. Reverse side includes Antigrade-Fahren- heit graph and a chart showing boiling points of various solvents under pressure.

Publications Noted Preparation for Retirement: A Study of Post-employment

Adjustment. Esso Standard Oil Co., New York. On the Systematics and Origin of the Generic Group

Oxyptilus Zeller (Lep. Alucitidae). Stanislaw Adam- czewski. Entomology Bull. Vol. I, No. 5. The British Museum (Natural History), London. 1951.

The Compass of Sigma Gamma Epsilon. Vol. 28, No. 2. Fred M. Bullard, Ed. U niversity of Texas, Austin. Jan. 195 1.

Bibliography of Weed Investigations for 1950. Plant In- dustry Station, USDA, Beltsville, Md. Jan. 1951.

A Report on an Administrative Survey of the U. S. Office of Education of the Federal Security Agency. Reprinted by Federal Security Agency, Public Admin- istration Service, Chicago. Oct. 1950.

Social Science Research Council Annual Report 1949- 1950. Social Science Research Council, New York.

A Synopsis of the World Literature on the Fruit Tree Red Spider Mite Metatetranychus Ulmi (C. L. Koch, 1835) and its Predators. Joan R. Groves. Commonwealth In- stitute of Entomology, London. 1951. 20 s.

Geology and Barite Deposits of the Del Rio District, Cocke County, Tennessee. H. W. Ferguson and W. B. Jewell. Division of Geology Bull. 57. State of Tennessee Dept. of Conservation, Nashville. 1951.

Acta Agronomica. Organo de la Facultad de Agronomia de Palmira. Vol. I, No. 1. Universidad Nacional de Colombia, Facultad de Agronomia, Palmira. Dec. 1950.

Modern China Monthly. First Issue. Chen Shih-Chuan, Publisher, 25, Lane 16, Section 2, Chun Shan Road, North Taipeh, Taiwan, Free China. Oct. 1950. 50?, in U.S.A.

Comedores Populares. Boletin Informativo del Instituto Nacional de Nutricion. Vol. 1, No. 6. Amando Gon- zalez Puccini, director, Instituto Nacional de Nutricion, Venezuela, May-Nov. 1950.

Archivos Venezolanos de Nutricion. Organo Oficial del Instituto Nacional de Nutricion. Editor, Instituto Nacional de Nutricion, Apartado 2049, Caracas, Venezuela. Dec. 1950.

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MSA Maskfone, a development of Mine Safety Appliances Company approved by the U. S. Bureau of Mines for use with most masks employed by fire departments and in- dustry, allows two-way voice communication over long tisqtaqnces thusi n.-rmitn i+;nCrtn rnm<; f rl

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