Miscellaneous Scientific Intelligence. 507 



has been reached that these jadeitie rocks are American, not 

 Asiatic, in origin, probable localities being- in Guerrero or 

 Oaxaca. Mexico and Costa Rica, or in both. The first habitation 

 of man and of the giant land mammals of prehistoric time is 

 indicated to have been on the Asiatic continent by results of the 

 recent expedition to China and Mongolia of the American Museum 

 of Natural History under Prof. Ray Chapman Andrews as 

 described by Dr. W. D. Matthew. 



The U. S. Navy's recently developed device for measuring 

 ocean depths by the echoes from the sea bed of sounds sent from a 

 transmitter on board ship was described by Dr. Harvey C. Hayes. 

 1 ' If we had measured ocean depths where the sinking of the ocean 

 bed caused the Chilean earthquake, we could measure the spot ' 

 now and perhaps learn something of value." The manufac- 

 ture and use of electronic tubes for the transmission of high 

 power were described by H. D. Arnold. Other speakers dis- 

 cussed the gyroscope's uses for stabilizing ocean steamers and 

 airplanes, and the methods of carrying multiple telephone and 

 telegraph messages on a single wire. Dr. C. G. Abbot described 

 the spectrum energy curves of the stars. 



2. Nobel Prizes for 1921 and 1922. — The physics prize for 

 1921 has been awarded to Professor Albert Einstein of Zurich ; 

 that for 1922 to Prof. Niels Bohr. Copenhagen. The chemistry 

 prize for 1921 has been awarded to Professor Frederick Soddy of 

 the University of Oxford: that for 1922 to Francis William 

 Aston, research fellow of Trinity college, Cambridge. 



Obituary. 



Major-General James Waterhouse died on September 28 at 

 the age of eighty years. His contributions to photography were 

 most important and won for him recognition from many pho- 

 topographic societies in England and elsewhere. 



William Hexry Wesley, the English astronomer and for 

 forty-seven years assistant secretary of the Royal Astronomical 

 Society, died on October 17 at the age of eighty-one years. 



Professor Charles Michie Smith, of the Christian College. 

 Madras, and later Government Astronomer at Madras, died on 

 September 27, at the age of sixty-eight years. 



Professor Lev A. Tchugaiev, the eminent Russian chemist of 

 the Petrograd University and also director of the Institute for the 

 study of platinum, died on September 23 at the age of forty-nine 

 years. 



Robert AYheeler Wilson, emeritus professor of astronomy in 

 Harvard University, died in Cambridge on November 1 in the 

 seventieth year of his age. 



Dr. C. AY. Waggoner, head of the department of physics in West 

 Virginia University, died recently at Shreveport. Louisiana. 



