New 4th Edition

This.0book is

basic.

i SI

The new Matheson Compressed Gas Data Book containsalmost everything you'll want to know about every gascurrently available for laboratory use-over 100 differentgases. The new 4th Edition is substantially expanded,and contains new technical material. Information ispresented in easy-to-use form, with liberal use of tablesand charts. It is an important reference book for everylaboratory that uses compressed gas. Each book is soldwith a Supplemental Data Service: as new data sheets andtechnical reports are published, they will be sentto you, without cost, for the life of the 4th Edition.PARTIAL CONTENTSE 524 Pages, 191 Charts and Tables, Specifications,Physical Constants, Chemical Properties,Physical Data on 100 Gases.O Recommended controls and regulators for all gases, withdimensional drawings of connections; usage information.O Materials of Construction.0 Safety procedures for each gas and a generalchapter, "Safe Handling of Compressed Gases".O Toxicity and first aid procedures for hazardous gases.O Leak detection and control.O Commercial preparation.O Cylinder Handling and Storage.ORDER NOW-Available only from The MathesonCompany, Inc., P.O. Box 85, East Rutherford, N.J.Price $10.50, postpaid in U.S. and Canada, includesSupplemental Data Service providing new data sheetsand technical reports as they are published.* IMAATHESON

If you use compressed gases, we suggest that you order now from Matheson

29 API 16 583

- lw

I 107 %W..129 ARIL 1966 583

SAUeNrDERS

For the resecarcher-For the teacher-For the studentNew!/Florey'sGeneral & Comparative

Animal PhysiologyBy ERNST FLOREY, Ph.D., University ofWashington, SeattleThis entirely new book gives the un-dergraduate the first truly introduc-tory-level text on the subject. The au-thor skillfully presents the fundamentalgeneral principles of physiology un-derlying all of the physiological mech-anisms in the animal world, from theperspective of a comparative point ofview. The beginning student is givensolid help in relating pertinent princi-ples of general, biological, and physi-cal chemistry to physiological situa-tions and problems. Separate chap-ters on these subjects are placed di-rectly ahead of the physiologic topicsfor which they form an indispensablebackground. Dr. Florey emphasizes aquantitative approach to physiology,especially in the chapters on osmoreg-ulation, ionic regulation, circulation,and nutrition. Over 550 illustrationswith instructive legends illuminate im-portant points.About 650 pp. * Over 550 IllustrationsAbout $11.50 * New-Ready June, 1966

New!/Carlson'sThe Gene:A Critical History

By ELOF AXEL CARLSON, Ph.D., Uni-versity of California, Los Angeles.The development of tle gene conceptis traced in this stimulating new vol-ume, from the re-discovery of Mendelto 1960. Dr. Carlson's able assessmentof the contributions made by thegiants of genetic investigation makespossible a new appreciation of earlierachievements. The historian-scientistwill gain a new insight into the meth-ods and philosophy of the men whogave birth to this vital area of science.The author records the contributions ofBateson, Johanssen, Castle, Morgan,Muller, Bridges, Sturtevant, Gold-schmidt, Beadle, and Tatum. He pre-sents carefully selected passages fromthe works of each man, permittingthem to state their own views. Dr.Carlson presents interesting analysesof the disputes and controversy be-tween the protagonists of diverse the-ories during formulation of the geneconcept as it is known today.About 300 pp. * Illus. * About $9.00

New-Ready July!

New! (2nd) Edition/Orr'sVertebrate Biology

By ROBERT T. ORR, Ph.D., CaliforniaAcademy of SciencesBeautifully illustrated, this New (2nd)Edition presents a fascinating pictureof the characteristics and way of lifeof North American vertebrates. Ana-tomical arrangements and functionalsystems of representative vertebratesin each group are vividly described . . .skeletal, muscular, digestive, respira-tory, urogenital, sensory, endocrine.Special characteristics of each verte-brate type are fully discussed. Dr. Orremphasizes the way of life of the ver-tebrate, including migration, dispersal,sex recognition, competition, mortality,courtship, the territorial concept, etc.Improvements in this New (2nd) Editioninclude expanded coverage of classifi-cation, 82 new illustrations, and manynew topics, including invasion, echo-location, hermaphroditism, and thetropic zone of the Americas.About 512 pp. * Illustrated. * About $8.50

New (2nd) Edition-Ready September!

Initial Offering in aNew Monograph Series:

FRONTIERSIN

BIOLOGY

I Gause-MICROBIAL MODELS OF CANCIER CELLSBy G. F. Gause, Academy of Medical Sciences in Moscow

I The researcher investigating malignant transformations of cells will findI substantial aid in this book on the use of microbial models. These importantI research tools are useful in gaining a better understanding of the archi-I tecture of deletions in cellular biochemical mechanisms accompanyingI cancer. In particular, models help in gaining new insight into malignantI alteration of enzyme synthesis, evaluation of biosynthetic properties ofI cancer cells, and cancer-induced distortions in the nucleic acids.

110 Pages * $4.50 * New-Just Readyl

\v\J B. Saunders Company W. Washington Square, Philadelphia, Pennsylvania 19105Please send and bill me: 2 Florey's GENERAL AND COMPARATIVE ANIMAL PHYSIOLOGY .......About $11.50

D Carlson's THE GENE: A CRITICAL HISTORY .......................About 9.00D Orr's VERTEBRATE BIOLOGY........................ ...... ..About 8.50

SC 4/29/66 :] Gause's MICROBIAL MODELS OF CANCER CELLS ....................About 4.50NameAddress ZIP_

'N

SCIENCE, VOL. 152586

It's called the new Beckman E-3Glass Electrode. It provides multi-pur-pose pH measurement. It offers widetemperature application in the 0-100° Crange. It measures accurately over theentire 0 to 14 pH scale with low sodiumerror. It maintains high sensitivity to thesample in the presence of corrosiveaction.

For accurate pH sensing under almostany condition and the latest in electrodetechnology, look to the recognized leaderin pH . . . Beckman.

For additional information on the newE-3 Glass Electrode, or other Beckmanelectrodes, contact vour local BeckmanSales Officc. Or write for Data FileLpH-466-1 5.

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SCIENTIFIC AND PROCESSINSTRUMENTS DIVISIONFULLERTON, CALIFORNIA - 92634

IN'TERNATIONAL elB1DIARIES: GENEVA; MUNICH;GLENROTHES, '.,T AND; TOKYO; PARIS; CAPETONN; LONDON

592

sibility would be for agencies to add afixed percentage to each grant, similarto the overhead allowance, for directsupport of computer facilities. A thirdpossibility would be to include comput-ing facilities directly in overhead andincrease the overhead rate accordingly.For those who believe that computingcenters should be considered a necessarycampus-wide service, analogous to li-braries, this last solution seems logical.

ANTHONY RALSTONCoinputing Center, State Universityof Newv York, Blilualo

Krebiozen and Faith

The Krebiozen case (News andComment, 4 Mar., p. 1061) illustratesboth the benefits and the hazards ofhuman faith. When people in distresshave a tremendous need to believe insomething or somebody, then the forcesof society seem powerless to effect anunmnasking of the inconsistencies in-volved in that faith. SuLch vigor offaith no doubt is a necessity to manypeople in their times of crisis. Whena truly effective anticancer agent is de-veloped, Krebiozen will be instantly for-gotten.One of the collorary hazards of faith

is that constant repetition of unsub-stantiated statements eventually pro-duces the appearance of truth. The his-tory of science is cluttered with unsub-stantiated "truths," and some profes-sional reputations rest more uponbrashness and persistence in repeatingsuch statements than upon brains andthe careful pursuit of knowledge....

JOHN T. FLYNNBeekinan-Dow itownt Hospital,170 Williamii Street, Newv York 10038

Lesson of Pittsburgh

I am inclined, from Science's recentaccount of developments at the Uni-versity of Pittsburgh (News and Com-ment, 4, 1 1, and 18 Feb.). to regardex-Chancellor Litchfield with far moreesteem than I did. Speaking as anadministrator. I should like to say thatthe role is an unenviable one. One is aservant to those one administers as wellas to those one has to account to. Onedoesn't take such a job out of altruism,but perhaps the chief reward is theachievement of goals that one believesone has a particular capacity to push

through. I use the verb "push," becausethe administrator must have and main-tain authority to enable him to do hisjob.

The era of Litchfield may be overfor Pitt. It would be well, however, forthe community and the trustees to rec-ognize the debt they owe him, asbrought out in the Science account. Oneaspect of Pitt's situLation not brought outin that account is the proximity ofCarnegie Tech, a strong academic in-stitution to try to compete with. YetLitchfield did so successfully, instillingan esprit de corps at the university thatis not easily come by.

This is my expression of thanks tohim for what he tried to do to strength-en higher education in one small sec-tor of our country. I do not view thedebacle that resulted as his personalfailure, but as a lesson to us all in therequirements for establishing and op-erating a major academic institution.May we learn and benefit from it.

ROWENA W. SWANSON505 Sewvard Sqllare SE,Waslin1gton1, D.C. 20003

Samuel Johnson onDermo-optical Perception

Readers of Martin Gardner's articleon dermo-optical perception (11 Feb.p. 654) may be interested in howJohnson dismissed the matter. In the19 April 1772 entry in Boswvell for theDefense [W. K. Wimsatt, Jr., andF. A. Pottle, Eds. (Heinemann, London,1960), p. 134], Boswell records:

We talked of the blind being able todistinguish colours by the touch. Mr.Johnson said that the great Saundersonmentions his having attempted to do it:but that he found he was aiming at animpossibility. That, to be suLre, a differ-ence in the surface makes the differenceof colours. "But that difference," observedMr. Johnson, "is so fine that it is notsensible to the touch." The General [Pas-quale de Paoli] mentioned gamesters andjugglers who could know cards by thetouch. Mr. Johnson said that those cardsmust not have been so well polished asours are.

The editors add in a footnote:

Nicholas Saunderson, blinded by smallpoxat the age of twelve months, became in1711 fouLrth Lucasian Professor of Mathe-matics at Cambridge. His Elemiienits ofAlgebra, 1740, contains the disclaimer towhich Johnson refers.

F. A. BREWERDepartment of Radio anid Television,I,idiua,a Un1ive, sity, Bloomin-ton

SCIENCE, VOL. 152