George P. Merrill, head curator of the National Museum, with the largest perfect crystal globe in the world, Washington, D.C.

Dr. Nathan Augustus Cobb, technologist of the Dept. of Agric., who has discovered that by the use of a piece of glass he can invoke the aid of the sun in making microscopic studies of minute objects. Until this glass was used, the sun blurred instead of clarified the object

Merrill, Prof. G.P.

Daniel W. Kessler of the National Bureau of Standards with device used to test slabs of marble over long periods of time

Prof. Chas. F. Marvin, Chief of U.S. Weather Bureau, with recording mercurial barograph, an instrument made and perfected by the bureau under his supervision, measuring on a magnified scale the fluctuations in the pressure of the air

D.B. Carson, who supervises licensing and operation of all radio stations in U.S., shown holding the Herbert Hoover Cup of best all-around amateur radio station in U.S. which was awarded to Donald C. Wallace, Minneapolis, Minn. His station is 9-ZT--9-XAX *Commissioner of the Bureau of Navigation

Arthur Kochler, wood identification specialist of the Department of Agriculture, says the piece of wood he is holding is 12,000,000 years old. It is a fragment from a fossil log of redwood, 7 feet thick, found by workmen of the Reclamation Service buried 150 feet below the bed of the Yakima River in

Noted member of Natural History Museum staff. Washington, D.C., April 26. A new informal photograph of Dr. Walter Granger, of the American Museum of Natural History in New York City

Librarian of Congress rounds out 40 years on job. Washington, D.C., April 6 Dr. Herbert Putnam is this week celebrating his 40th Anniversary as Librarian of Congress. Now 77, Dr. Putnam in theory became Librarian Emeritus last July 1, but since President Roosevelt has not yet appointed his successor