340 SCIENTIFIC NOTES AND NEWS 



Rio Colorado. The present reconnaissance will be conducted chiefly 

 in northwestern Arizona. At the request of the National Geographic 

 Society, the Secretary of the Smithsonian Institution has granted per- 

 mission for Mr. Judd to direct the Society's archeological reconnaissance 

 of Chaco Canyon, New Mexico, during the present summer. 



Dr. Van H. Manning, Director of the Bureau of Mines, has pre- 

 sented his resignation, to be in effect June i, and will become director 

 of research in the American Petroleum Institute. Dr. Manning has 

 been with the Department of the Interior since 1886, and became 

 director of the Bureau of Mines after the death of Dr. J. A. Holmes, 

 in 1915. 



Mr. T. Matsumoto, of the Imperial Geological Institute, Tokyo, 

 Japan, visited Washington in April. 



Mr. O. E. Meinzer, of the Water Resources Branch, U. S. Geological 

 Survey, recently addressed the Southern California members of the 

 American Society of Civil Engineers, at Los Angeles, and also the sec- 

 tion of the Society at San Francisco, on "An outline and glossary of 

 ground- water hydrolog>\" 



Mr. G. W. MoREY, of the Geophysical Laboratory, Carnegie Insti- 

 tution of Washington, who has been on leave of absence and in charge 

 of the optical glass plant of the Spencer Lens Company of Buffalo, New 

 York, since November, 1918, returned on May i, 1920, to resume his 

 research work at the Laboratory. 



Dr. W. C. Phalen, formerly geologist in the U. S. Geological Survey 

 and mineral technologist in the Bureau of Mines, has been engaged 

 as geologist by the Solvay Process Company with headquarters at 

 Syracuse, New York. 



Mr. R. Luther Reed, who aided Secretary S. P. Langley in his 

 work on aerodromes, died on April 26, 1920, after forty years of service 

 with the Smithsonian Institution. 



