SCIENTIFIC NOTES AND NEWS 247 



Mr. E. T. Hancock has resigned as geologist of the U. S. Geological 

 Survey to represent the Standard Oil Company in Roumania in its oil 

 operations. 



Messrs. A. A. Hansen and F. V. CovillE, of the Bureau of Plant 

 Industry, and Paul Bartsch, of the National Museum, delivered in 

 March and April an illustrated lecture course on "Wild Flowers" under 

 the auspices of the Wild Flower Preservation Society of America in 

 cooperation with the Community Center Department of the Public 

 Schools of the District of Columbia. 



Mr. John B. Henderson, a regent of the Smithsonian Institution, 

 who for the past two years has devoted the major part of his time to 

 molluscan research in the Division of Marine Invertebrates, has gone 

 to Cuba and Jamaica to secure certain anatomical material of the West 

 Indian operculate landshells necessary to complete a new classification 

 of these mollusks, upon which he and Dr. Paul Bartsch are now at 

 work. 



Prof. James T. JardinE, in charge of the Ofhce of Range Research 

 of the U. S. Forest Service for the past thirteen years, resigned from 

 the Service in March to become Director of the Oregon State Agricul- 

 tural Experiment Station at Corvallis. The work of the office of 

 which he has been in charge embraces a study of the classification, im- 

 provement, and use of western range lands, and the period of his ad- 

 ministration has seen the development of fundamental principles in 

 range management and their application to 153,000,000 acres of graz- 

 ing lands in the National Forests. 



The following hydrographic and geodetic engineers resigned from 

 the U. S. Coast and Geodetic Survey in January and February: G. R. 

 A. Kantzler, W. H. Overshiner, J. D. Powell, P. M. Trueblood, 

 E. M. Wilbur, and S. D. Winship. 



Mr. W. S. W. Kew, who has been studying the oil fields of Cali- 

 fornia for the U. S. Geological Surve}^ will take a furlough for six 

 months to investigate oil fields in Colombia, South America. 



Mr. Henry Lindenkohl, cartographer of the U. S. Coast and Geo- 

 detic Survey, died on February 19, 1920, in his eighty-second year, 

 after fifty-nine years of service with the Survey. Mr. Lindenkohl was 

 born in Hesse-Cassell, Germany, January 26, 1839, and became an 

 American citizen in 1861. He made many contributions to the military 

 maps of the Federal armies during the Civil War, and had been engaged 

 in active cartographic work from that date until the time of his death. 



Mr. J. B. Norton, physiologist in the Bureau of Plant Industry, has 

 resigned to go into commercial plant breeding work at Hartsville, 

 South Carolina. 



Mr. Albert F. Potter, Associate Chief of the Forest Service, re- 

 signed from the vService in March, requesting that his resignation be 

 made effective April 15. 



