June 20, 1902.] 



SCIENCE. 



997 



Photographs taken at Cambridge on June 

 5 and June 8, 1902, with the 8" Draper Tele- 

 scope, indicate a correction to this ephemeris 

 in R. A. of +0-liQ) and in Dec. of — 1'. 

 Photographic enlargements of this region 

 will be furnished to observers who will under- 

 take the required observations. 



The opposition of Tercidina occurs on Au- 

 gust 3, 1902, magn. 11.5, in R. A. 20h 50.4m, 

 Dec. — 0° 40'. Daily motion in R. A. 

 — 0.9m, in Dec. — 4'. 



Edward C. Pickering. 



A GRADUATE SCHOOL OF AGBICULTUBE. 

 The first session of a graduate school of 

 agriculture held under the auspices of the 

 Ohio State University, and with the coopera- 

 tion of the United States Department of Agri- 

 culture and the Association of American 

 Agricultural Colleges and Experiment Sta- 

 tions, will open at Columbus on July 7 and 

 will continue for four weeks. The purpose of 

 the school is to give advanced instruction in 

 the science of agriculture, and particularly in 

 the methods of investigating agricultural 

 problems and teaching agricultural subjects. 

 Only persons who have completed a college 

 course and taken a bachelor's degree, or who 

 are recommended by the faculties of the col- 

 leges with which they are associated, will be 

 admitted to the privileges of the school. In- 

 struction will be given in four courses — 

 agronomy, zootechny, dairying, and animal 

 and plant breeding. The courses in these 

 subjects will run parallel; except that the 

 course in breeding will be so arranged that 

 ii. can be tal^en by students in any of the 

 other courses. The Saturday morning periods 

 will be devoted to lectures and conferences on 

 agricultural pedagogy and special topics of 

 general interest. The equipment of modern 

 dairy apparatus and machinery and apparatus 

 for instruction in soil physics is especially 

 complete. Some of the apparatus used in the 

 investigations of the Bureau of Soils of the 

 U. S. Department of Agriculture will be 

 transferred to Columbus for the use of the 

 school. This bureau is now conducting a soil 

 survey of the region in the immediate vicinity 

 of Columbus, and the students of the school 



will have an opportunity to observe the field 

 methods of this survey. 



The breeders of Ohio will contribute live 

 stock for judging and demonstration purposes 

 in connection with the courses in zootechny 

 and animal breeding. An especially selected 

 library of works on agriculture and agricul- 

 tural science will be provided. 



Dr. A. C. True, chief of the Division of 

 Agricultural Colleges and Experiment Sta- 

 tions of the Department of Agriculture, is 

 dean of the school. The faculty will consist 

 of about thirty instructors, including the 

 heads of the agricultural departments of state 

 universities and agricultural colleges and the 

 directors and other officers of experiment sta- 

 tions in different parts of the country, as well 

 as chiefs of bureaus and other officers of the 

 U. S. Department of Agriculture. 



SCIENTIFIC APPOINTMENTS UNDER THE 

 GOVERNMENT. 



Several positions in the scientific depart- 

 ments of the government will be filled as the 

 result of civil service examinations in July. 



On July 10 an examination will be held to 

 fill three vacancies in the position of labora- 

 tory assistant in the National Bureau of Stand- 

 ards, at a salary of $900, $1,000 and $1,400 per 

 annum, and to other similar vacancies as they 

 may occur. 



The examination will consist of the subjects 

 mentioned below, which will be weighted as 

 follows : 



Education and training, including training in 

 mathematics and mathematical physics. 

 (State all courses in these subjects taken 

 in college or later. ) 20 



Experience, including {a) laboratory work in 

 electricity and general physics done in col- 

 lege or later ; ( 6 ) any other experimental 

 work or original research ; ( c ) other ex- 

 perience likely to be helpful in the position 

 of laboratory assistant 30 



One or more of the following optional sub- 

 jects: (a) Theoretical and applied elec- 

 tricity and electrical testing; (6) Theo- 

 retical and experimental optics; (c) 

 Mechanics of solids and fluids with appli- 

 cations to the testing of weiglits and 

 measures 50 



