2l6 SCIENTIFIC NOTES AND NEWS 



Prof. A. S. Hitchcock of the Division of Plants, U. S. National 

 Museum, returned from British Guiana on February 17. He left 

 Washington, October i, 1919. Collections were made at many of the 

 West Indian Islands. Collections of all the flowering plants and ferns 

 were made, though special attention was given to the grasses. Over 

 II 00 numbers were obtained, including 108 sets of grasses. 



Mr. O. B. Hopkins, geologist of the U. S. Geological Survey, special- 

 izing in oil investigations, has resigned to accept a position as geologist 

 with the Imperial Oil Company, of Toronto. 



Mr. Hennen Jennings, retired mining engineer, died at his home, 

 2221 Massachusetts Avenue, on March 5, 1920, in his sixty-sixth year. 

 Mr. Jennings was born at Hawesville, Kentucky, May 6, 1854. After 

 graduation from the Lawrence Scientific School of Harvard University, 

 he took up mining engineering. His principal work was in South Africa, 

 where he was connected with mining companies from 1879 until 1905. 

 He had been a resident of Washington since 1906. He was a member 

 of the Archaeological, Engineers', and Historical Societies, and had 

 been a member of the Academy since 1916. 



A noteworthy accession to the diatom collection of the National 

 Museum is from the Lompoc California deposit, sent by Dr. David 

 Starr Jordan, for a study of the physical conditions connected with 

 the fossil remains of vast quantities of herring embedded in the diatom 

 material of this deposit. 



Mr. Robert W. Pack, formerly oil geologist of the U. S. Geological 

 Survey, has been appointed chief geologist of the Sun Company, at 

 Dallas, Texas. 



Prof. W. H. Shiedler, of Miami University, is spending three months 

 in the study of the fossil bryozoa of the Division of Paleontology, U. S. 

 National Museum. 



Mr. George W. Spier, who has been associated for many years with 

 the watch-making industry, has been appointed Honorary Custodian 

 of Watches at the National Museum. Mr. Spier plans to arrange an 

 exhibit, showing the developments in the watch-making art in the 

 United States and incidentally showing the development of the in- 

 dividual mechanisms which enter into a watch movement. 



