CATALOGUE OF INSTITUTIONS— DISTRICT OF COLUMBIA 



171 



1 non-magnetic laboratory building for 

 standardization of magnetic instruments, 1 floor, 

 26 X 58 feet. 



1 experiment building, 28 x 53 feet, with 

 extension 34 x 47 feet, and basement 34 x 47 feet. 

 Library, more than 8,000 volumes and 15,000 

 reprints. 



Several service buildings and foundry (tem- 

 porary structures). 



9-acre site at Washington, D. C. 

 Magnetic, electric, seismological, radiotele- 

 graphic, spectrohehoscopic, and auxiliary build- 

 ings and living quarters for observatory, operated 

 from 1921, and located on 25-acre site acquired 

 late in 1919 near Huancayo, Peru, 125 miles 

 east of Lima. 



Magnetic, electric, radiotelegraphic, spectro- 

 hehoscopic, and auxiliary buildings and living 

 quarters for observatory, operated from 1919, 

 and located on 220-acre site acquired in 1917 near 

 Watheroo, Western Australia, about 120 miles 

 north-northeast of Perth. 



During 1909 to 1929 non-magnetic ves.sel 

 Carnegie with special equipment, an auxiliary 

 brigantine of 568 tons displacement, of 33-foot 

 beam, and 155 feet long over all. 

 Staff: Dr. J. A. Fleming, Director (terrestrial mag- 

 netism and electricity, oceanography, field and 

 obiservatory operations). 

 O. H. Gish, Physicist and Assistant Director 



(terrestrial electricity) . 

 W. J. Peters, Research Associate (compass- 

 deviations, magnetic disturbances). 

 Dr. S. Chapman, Re.search Associate (magnetic 



and electric theory). 

 Dr. J. Bartels, Research Associate (magnetic 



activity and correlations). 

 Dr. H. U. Sverdrup, Research Associate (oceano- 



graphical re.search). 

 Dr. G. Breit (nuclear physics theory). 

 Dr. G. Gamow (nuclear physics). 

 H. F. Johnston, Physicist (magnetic variations). 

 Dr. M. A. Tuve, Physicist (nuclear physics). 

 L. V. Beckner, Physicist (ionospheric research). 

 Dr. G. R. Wait, Physicist (atmospheric elec- 

 tricity). 

 Dr. L. R. Hafstad, Physicist (nuclear physics). 

 W. J. Rooncy, Physicist (earth-currents). 

 Dr. N. P. Heydenburg, Associate Physicist (nu- 

 clear physics). 

 W. C. Parkinson, Magnetician (terrestrial mag- 

 netism). 



W. F. Wallis, Magnetician (terrestrial magnetism). 



J. W. Green, Magnetician (magnetic secular- 

 variations and land-survey). 



A. G. McNish, Magnetician (magnetic and electric 

 theory). 



E. A. Johnson, Mathematical Physicist (electro- 

 magnetic design and theory). 



C. R. Duvall, Expert Computer (secular variation 



and harmonic analysis). 

 C. C. Ennis, Computer (oceanographical and 



magnetic research). 



F. T. Davies, Computer (observatory work). 



C. W. Torreson, Observer (atmospheric elec- 

 tricity). 



P. G. Ledig, Observer (observatory and land 

 magnetic survey). 



W. E. Scott, Observer (observatory work). 



S. L. Seaton, Observer (observatory ionospheric 

 research). 



S. E. Forbush, Observer (magnetic and electric 

 theory). 



H. W. Wells, Observer (ionospheric research). 



W. W. Culmsee, Observer (observatory work). 



K. L. Sherman, Assistant Physicist (atmospheric 

 electricity). 



R. C. Meyer, Assistant Physicist and Instrument- 

 maker (nuclear physics and instrumental de- 

 signer). 



H. W. Graham, Biologist and Chemist (research 

 on biological collections of Carnegie). 



W. F. Steiner, Chief Instrument-maker (instru- 

 mental designer). 



Two junior observers and one hand, in addition 

 to Observer-in-Charge and his two staff- 

 assistants, at Watheroo Magnetic Observatory 

 (observatory operation). 



One observer, two clerical assistants, and four 

 general assistants and hands, in addition to 

 Observer-in-Charge and his one staff-assistant, 

 at the Huancayo Magnetic Observatory (ob- 

 servatory operation). 

 Provision for visiting investigators: In addition to 



the Institution's staff, there are occasional visiting 



investigators at the laboratory in Washington. 



Accommodations for such visiting investigators 



are somewhat limited, although as many as four 



or five visiting investigators can be accommodated 



at one time. 

 Income: The annual grant of the Department for 



1937 from the Carnegie Institution of Washington 



is about $189,000. This amount varies somewhat 



from year to year. In adchtion, private con- 



