648 SCIENTIFIC NOTES AND NEWS 



Dr. D. J. KeIvIvY, first assistant examiner in Division 31 of the Patent 

 Office, died on July 24, 1919. He had been connected with the Patent 

 Office since 1880, and had become an authority on the development 

 of the mineral oil industry. 



Dr. G. F. LouGHLiN, of the Geological Survey, is giving a course 

 of lectures on metalliferous geology at the Massachusetts Institute of 

 Technology, temporarily filling the place of Professor WaldEmar 



LiNDGREN. 



Mr. H. A. Nelson, formerly of the Bureau of Standards, is now 

 with the New Jersey Zinc Company. 



Mr. C. G. QuiLLiAN, of the U. S. Coast and Geodetic Survey, has 

 laid out a speed-trial course for the use of aircraft in the vicinity of 

 Rockaway Beach, Long Island, at the request of the Navy Depart- 

 ment. 



Dr. L,. W. Stephenson, of the Geological Survey, has been granted 

 a six months' leave of absence in the early part of 1920, in order to do 

 stratigraphic work for one of the oil companies in the Tampico oil 

 field, Mexico. 



