38 



SCIENCE 



[Vol. LVI, No. 1437 



The establisliment of four fellowships to do 

 this work in 1922 and 1923 is an endorsement 

 of similar investigations conducted this past 

 year at these institutions. Four fellowships 

 were established a year ago by the advisory 

 board of coal operators of the cooperative de- 

 partment of mining engineering at the institute. 

 They also chose the problems for the research 

 work The Pittsburgh district is the first to 

 take this progressive step in solving the prob- 

 lems of coal mining. When the results of the 

 research work are broadcasted, the whole indus- 

 try should be benefited. 



The investigations of the four research fel- 

 lows conducted the past year are completed and 

 reports will soon be available to the coal indus- 

 try. For the coming year, appointments have 

 already been made by the cooperative depart- 

 ment of coal mining to begin the work in Sep- 

 tember. The problems selected by the advisory 

 board of operators have been assigned to the 

 fellows in accordance with their specific train- 

 ing and adaptability. In making the appoint- 

 ments, applications were considered from all 

 parts of the United States, reflecting the wide 

 interest at large in research work of coal mining 

 problems. 



The four problems to be investigated, as 

 recommended by the advisory board, are: 

 (1) De-sulphurization of coke. (2) Corrosion 

 problem with regard to acid mine waters. (3) 

 Microscopic study of the Pittsburgh coal seam. 

 (4) By-produet study oi the roof coal of the 

 Pittsburgh coal seam. 



The appointments and assignments for 

 1922-3 are: 



Teaching Fellows: John H. Thompson, B.S. 

 metallurgy, 1922, University of Washington, under 

 Dr. Alfred E. Powell, physical chemist, of the 

 United States Bureau of Mines, and V. F. Parry, 

 B.S. mechanical engineering, 1922, University of 

 Utah, under Joseph D. Davis, fuels chemist, U. S. 

 Bureau of Mines. 



Hesearcli Fellows: J. Richard Adams, B. S. 

 physical chemistry, 1922, Cornell UniveTsity, under 

 E. J. Anderson, metallurgist, U. S. Bureau of 

 Mines, and James U. Stand, B. S. geology, 1922, 

 Pennsylvania State College, under Dr. Eeinhardt 

 Thiessen, research microscopist, U. S. Bureau of 

 Mines. 



THE OPTICAL SOCIETY OF AMERICA 



The seventh annual meeting of the Optical 

 Society of America will be held at the National 

 Bureau of Standards, Washington, Thursday, 

 Friday and Saturday, October 26-28, 1922. 

 The regular sessions for the reading of papers 

 will be open to all interested persons. 



Members and others desiring to communicate 

 results of optical research are invited to submit 

 titles of papers for the program to the. secre- 

 tary any time before September 25. Titles re- 

 ceived after that date can not be included in the 

 program. Address Irwin G. Priest, secretary, 

 Optical Society of America,- care of Bureau of 

 Standards, Washington, D. C. Each title must 

 be accompanied by an abstract of not more 

 than 300 words. These abstracts will be printed 

 in the program and in the minutes of the meet- 

 ing. The purpose of the abstract is to give: 

 (1) a more definite description of the nature 

 and scope of the paper than can be conveyed 

 in the title, (2) the essential results in so far as 

 maj' be possible in the limited space allowed. 

 It is hoped that the advance publication of 

 these abstracts will prepare those attending 

 the meeting to consider the papers more intelli- 

 gently and with much greater interest. Authors 

 are urged to cooperate in this effort by pre- 

 paring their abstracts carefully with this end in 

 view. They are also asked to submit with each 

 abstract a careful estimate of the time which 

 will be necessary and sufficient to present the 

 paper briefly but adequately. In preparing the 

 program the secretary will be guided by these 

 estimates insofar as time will permit. 



No title will be printed to be presented "by 

 title." Titles should not be submitted unless 

 the author has a bona fide intention to actually 

 present the paper orally or have it presented 

 by some one else. 



One session will be devoted to vision and 

 physiologic optics. 



An exhibit of optical instruments and ap- 

 paratus will be held at the Bureau of Standards 

 in connection with this meeting. Communica- 

 tions relative to this exhibit should be ad- 

 dressed to Professor C. A. Skinner, chairman, 

 exhibit committee, Optical Society of America, 

 Bureau of Standards, Washington, D. C. 



