Evening Star Newspaper, January 9, 1921, Page 70

THE SUNDAY STAR, WASHINGTON, D. C.—ROTOGRAVURE SECTION—JANUARY 9. 1921 One of the important branches of the United States Naval Observatory . P B % in Washington is the aeronautical bureau, where instruments used in aviation W - o C(B:r:"gg u::’ ‘:‘O;l;o;“y&:'a:n:: ;l”:’:_e‘:": nbflet became are tested. Experiments are made to determine altitude, direction, measure- 2 Bt R B R S e L el ment of air moisture, etc. The officer at left is examining a drift instrument . syecialpdu( cabiea SR e Thes houf r‘a eh used by pilots at sea, and the officer at right is holding a small balloon used ; : ; shov De‘t’cctivc Ch}:'lrles Walsh expenpshox. emerigg angaml:)- Inidzdationalliio 5o viee i ) e mobile with his rifle. in testing air currents. €. Underwood & Vnder woud Prof. Charles Edward Guillaume of France, winner of the 1920 Nobel prize for physics, who is head of the International Bureau of Weights and A new and exclusive photograph of Queen Mary of England, Princess Helen, daughter of King Constantine, who has Measures at Sevres, near Paris. It is this bureau which sets the standards taken within the past month. returned to power in Greece. Recent rumors mention the of weights and measures for all parts of the world. @IKUSEIEViawiCo. princess as being engaged to Prince Carol of Rumania. Tnteruntional Film Service Keystooe View Co LM R - umwnx ANt cany )16 L.\‘\'H\“‘% ] Sons of Yuan-Shi-Kai, former president of the Chinese republic, come to America for their education. The American Forestry Associat_ion of Washington starts a shipment of 12,000,000 tree seeds for Charles, William, Thomas and Alexander will enter a Vermont school to prepare for college. ELarogei _The seeds, given by Americans, will aid the tree-growing plans in devastated areas of France Internaticnsl Film Service, an elgium. National Phoic Co.