JUNE 4, 1923 SCIENTIFIC NOTES AND NEWS 241 
At the meeting of the Bureau of Standards Physics Club, on Monday, 
May 7, Dr. P. D. Foor lectured on The nucleus of the atom. 
Mr. M. AurovussEAu, petrologist at the Geophysical Laboratory, Carnegie 
Institution of Washington, resigned on May 15 to join the scientific staff of 
the American Geographical Society, New York City. 
Mr. K. C. HEatp, geologist, of the U. S. Geological Survey, is on leave 
of absence for several months to give a course of lectures on petroleum 
geology at the University of Chicago. 
Dr. Epwarp P. Hyp, who organized the Nela Research Laboratories 
in 1908, and who for the past few years has occupied the position of director 
of research of the National Lamp Works of the General Electric Company, 
has tendered his resignation to take effect June 30. Dr. Hyde, who has been 
active in scientific and technical affairs for a number of years, has decided 
to take a prolonged rest abroad. 
Dr. Hucu M. Smiru, formerly commissioner of fisheries, has been 
appointed fisheries adviser of the Siamese government. 
Dr. A. C. Spencer has been granted leave of absence for a month from 
the U. S. Geological Survey to do professional work in Cuba. 
