August 2, 1918] 
number of investigators. Superintendent W. 
H. Thomas has been designated acting direc- 
tor of the laboratory for the season. Dr. 
George T. Moore, of the Missouri Botanical 
Garden, assisted by F. B. Dieuaide, will con- 
duct experiments on the production and utili- 
zation of algin. Professor Edwin Linton, of 
Washington and Jefferson College, will con- 
tinue investigations of the parasites of fishes 
and the food of flounders and other fishes. 
The Beaufort laboratory having been turned 
over to the Navy Department, no work will 
be done there this summer. 
THE AMERICAN INSTITUTE OF MINING 
ENGINEERS 
Iy an effort to increase the scope of their 
war service, the American Institute of Mining 
Engineers will meet in Colorado during the 
week of September 2, to take up vital problems 
of immediate importance. Mining engineers 
from every section of the country will attend. 
During the meeting, trips are to be made from 
Colorado Springs to the Cripple Creek district, 
Pueblo, the Leadville district and Boulder. 
The week’s session will open in Denver on the 
second of September, and will that evening 
move to Colorado Springs, which will be the 
_ principal headquarters for the duration of the 
meeting. 
This is the first meeting of the entire insti- 
tute in Colorado since 1896, and an appropriate 
entertainment program is being planned by the 
several hundred Colorado members. One of 
the special features of the entertainment will 
be an auto drive to the top of Pikes Peak. 
The sections of Colorado to be visited are 
rich in many war minerals of importance in- 
cluding ferro alloys, radium, molybdenite ores 
and pyrites. 
Those who are directing the plans for the 
Colorado meeting are as follows: Committee 
in charge, Spencer Penrose, chairman, A. E. 
Carlton, chairman finance committee, George 
M. Taylor, vice-chairman, J. Dawson Haw- 
kins, secretary. Denver Committees: (Ar- 
rangement) Dave G. Miller, Frank Bulkley, 
Geo. E. Collins; (Entertainment) F. H. Bost- 
wick, F. E. Shepard, Howland Bancroft, B. P. 
SCIENCE 
111 
Morse, J. G. Perry; (Finance) T. B. Stearns, 
Richard A. Parker, T. B. Burbridge. 
THIRD SUMMER MEETING OF THE MATHE- 
MATICAL ASSOCIATION OF AMERICA 
Ir is announced in the American Mathe- 
matical Monthly that the third summer meet- 
ing of the Association will be held by invita- 
tion of Dartmouth College at Hanover, New 
Hampshire, on Friday and Saturday, Septem- 
ber 6-7, 1918, in conjunction with, and follow- 
ing, the summer meeting of the American 
Mathematical Society. A joint dinner will be 
arranged for Thursday evening, September 5, 
and at a joint session on Friday morning the 
subject of the mathematics of warfare is to be 
treated by men now actively engaged in gov- 
ernment service. 
During the sessions of the association on 
Friday and Saturday, Professor Florian Cajori, 
of the University of California, will deliver his 
address, as retiring president, on “ Plans for 
a History of Mathematics in the Nineteenth 
Century ”; Professor W. F. Osgood, of Har- 
vard University, will speak “On the Mathe- 
matical Formulation of Physical Concepts and 
Laws as treated in the Calculus”; and Pro- 
fessor F. L. Kennedy, of Harvard University, 
will give a paper on “Some Experiments in 
the Teaching of Descriptive Geometry,” the 
discussion being led by Dean O. E. Randall, 
of Brown University. Other features of the 
association’s program will be announced later. 
For a session on Friday members are invited 
to submit papers on topics of their own choos- 
ing. Abstracts of such papers in a form suit- 
able for publication in the Secretary’s report 
of the meeting should be sent to Professor R. 
C. Archibald, Brown University, chairman of 
the program committee, not later than August 
first, in order to be approved by the committee 
in time for publication in the printed program; 
authors will please state the time necessary for 
reading their papers. No other announcement 
will be made until the program is mailed to 
members about the middle of August. 
The committee on arrangements, Professor 
J. W. Young, chairman, announces that Dart- 
mouth College will open one of its dormitories 
for the accommodation of attending members. 
