California Institute of Technology Cal Tech - Big T Yearbook (Pasadena, CA)

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g My qyyga 5 , f3fZ1.31Z,f4n-,.,g,v,,w74myfM.,f ff ff. Af .4 ,,,,,W,,,aV25,hA: 5, . ,ff V r,:,W,,.,V,,4f,,,,7,,,,lH,,f., X, H., f , .. . . ,.,, ., H I H , ,,,, ye . . , f A.ff--fagw:.i:gy-,fuyfmy W ., . , , V mf .ff f1wf,af4m:'wf: f .-WMMM-Wf 4 ., . -- f 5'4fZ'f4,'i:w.w ,ffaf-fkfeeff -vmy ,,f4'f'1f0ww zi',-firgqggf f D E P A R T M E N T S 'f Q, if. - 4 M2171 WZWW2' --M7911 . . Q- . mf f , lffasffwiwif f ff'f'1?-,TCL H ' ,, . ,fwlfwi . . V A 1, ,. , -mwazwf . fm. cf xW 'V Wffziwf- 'f -- a4fL2z-VWT. ' ' QW 'ZQWGW 3 Qfff ZW V 4, QZZW f DR. THOMAS H. MORGAN The Department of Biology Under the enthusiastic leadership of one of America's greatest authorities in this iield, Dr. Thomas H. Morgan, as chairman oi the Division of Biology, research is being conducted in the biological laboratories in the related fields of biology. A Division of Biology, rather than the traditional departments of Botany and Zoology, has been established, in order to emphasize the unity of the phenomena of living organisms rather than their manifold diversities. That there are many properties common to the two great branches of the living world has become abundantly manifest in recent years. For example, the same principles of heredity that obtain among flowering plants apply also to human traits, and in their response to light, animals and plants conform to common laws of physics. lt is true that, at what may be called the biological level, an immense diversity of form andfunction manifests itself, but enough insight has already been gained to make evident that this diversity is in large part due to per- mutations and combinations of relatively few fundamental and common properties. lt is in the search for these properties that the zoologist and botanist may profitably pool their interests. -MMf1.154zZ2Qi ' 722 ' .fzf-11 , Q fff3afZ,?fiif.21fyff.? Q 144' Twenty-three

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DEPARTMENTS I DR. JOHN P. BUWALDA The Department of Ge Within convenient reach of Pasadena occurs an almost unrivaled variety of rock types, geo- logic structures, and physiographic forms. Stratigraphic and faunal studies may be pur- sued in the Cenozoic and Mesozoic sedimentary rocks of the Southern Coast Ranges, and in the Mojave Desert Region. There remain many regions to be explored and, also, there are many problems inviting critical investigation. To those interested in economic geology the oil fields, Portland cement plants, and the various metal- liierous and gem producing regions of Califor- ol ogy and Paleontology nia, Arizona, and Nevada offer excellent oppor- tunities for visit and research. A fully equipped Seismological Research Laboratory, situated on the west side of the Arroyo Seco, is devoted to researches in seismo- logy and to the development of the instruments used in a seismological laboratory. Collections from many invertebrate and ver- tebrate faunal horizons in the sedimentary record of western North America permit the student interested in paleontology to secure an intimate knowledge of the history of life. 2.0, . , 655, 4g:w ,y,,,,,,-1 f' ,C -M ' f f f' W 'VW' ,wa , -' , 'p ff C I f firf .- f x 1 f f' ' - ,f if W' ' x W V f f f 1 ' ' 1 ffjef X. X ,U , Vx ff. Wf,,,,yf47144wf4 H iw, j K A H ff lfwiwfwzfywf 'ef' Twenty-two ' ' Z' ,.,. -1. 47. ..! f ff', -1- , U -' fwnf' M4 f ,W fy. ff, f, ZW ,fQ,j4,,,,Q!f,.

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DEPARTMENTS l RUSSELL W. PORTER The Department of Astrophysics The new Astrophysical Observatory, pro- vided for by the International Education Board, and to be constructed by the Institute, will con- sist of two main features. One of these will be the 200 inch telescope, with its building, dome, and auxiliary equipment, to be erected on the most favorable high altitude site that can be found within effective Working distance of Pasa- dena. The other is the Astrophysical Labora- tory, now nearing completion, which will serve as the headquarters of the Observatory. The Astrophysics Machine Shop, located on the campus, is engaged in the development of new instruments and the construction of equipment for the laboratory. Dr. John A. Anderson, of the Mount Wilson Observatory, as Executive Oiiicer of the Ob- servatory Council, is in direct charge of design and construction. The problems connected with the design of a large telescope such as this necessitate long study. Two substances, fused silica and Pyrex glass, have been under inves- tigation for some time, they are especially suit- able for mirror disks because of their low co- ehicient of expansion. The Work of putting the mirrors in finished form Will be d-one in an optical shop to be constructed adjacent to the Astrophysics Machine Shop. .1 3 if fa Z, fy- Twenty-four 2,4 ,.-, ' f - , 15,55 .-4,, my X3 ,M 'f wffzf- f Z .,f if