184 
should be selected primarily with a view to 
furnishing enjoyment by growth of knowledge 
about the history of our subject. 
The topics of this list may also be suitable 
subjects for consideration at meetings of 
mathematical clubs. In fact, it is especially 
important that the subjects selected for such 
metings should be fertile, since those who 
take active part in them include to a large 
extent the mathematicians of the future, and 
these mathematicians can not afford to be as 
ignorant of the history of their subject as 
are those of the passing generation. 
G. A. MiILurr 
UNIVERSITY OF ILLINOIS 
SCIENTIFIC EVENTS 
THE CLEVELAND MEETING OF THE 
AMERICAN CHEMICAL SOCIETY 
Tue annual September meeting of the 
American Chemical Society will be held at 
the Hotel Statler, Cleveland, Ohio, September 
10 to 18, 1918, inclusive. There is every pros- 
pect of a large and successful meeting. The 
chemists of the country are showing a very 
decided desire to get together in these war 
times for conference at a time when it is so 
difficult to keep in touch with the progress of 
chemistry through our literature. A meeting 
of this kind offers special inducements to 
members of our society to keep themselves 
abreast of the time. Wonderful chemical ad- 
vancement has taken place in America during 
the last year. Many chemists, both from the 
government service and from the industries, 
will be present. 
Registration will begin at 3 p.M., September 
9, at the Statler Hotel. Information regard- 
ing other hotels may be obtained from the 
chairman of the committee on hotels. 
The general preliminary program is as 
follows: 
Monday, September 9 
4. p.m—Council meeting at the University 
Club, Euclid Avenue and East 38th 
Street. Dinner there for the Council as 
guests of the Cleveland Section. 
SCIENCE 
[N. S. Vou, XLVIII. No. 1234 
Tuesday, September 10 
10 a.m.—General meeting. “The American 
Chemist’s Place in Warfare,” by Charles 
L. Parsons, Chairman of the Committee 
on War Service for Chemists. 
Other general papers to be announced. 
2 p.m.—General Symposium on the Chemistry 
of Dyestuffs. R. Norris Shreve, Chair- 
man. Numerous interesting papers and 
addresses are being prepared. These will 
take up the whole of the afternoon of 
Tuesday and may continue on Wednesday 
morning in the Industrial Division. 
Evening.— Banquet, Hotel Statler, followed by 
a smoker at the same place. 
Wednesday, September 11 
Morning —Divisional meetings—Hotel Statler. 
Afternoon.—Choice of excursions. 
(a) Sanitary trip, including sewage dis- 
posal experiments, water (filtration, 
garbage disposal. 
(6) Steel industries, blast furnaces, by- 
product coke, steel—bessemer and open 
hearth. 
(c) Industrial tour of Cleveland, including 
manufacturing centers. ; 
(d) Trip to Oberlin. 
Evening.—President’s address, followed by in- 
formal reception. 
Thursday, September 12 
Divisional meetings all day. 
Late Afternoon.—Outing to one of the coun- 
try clubs, followed by reception at the 
Cleveland Museum of Art. 
Friday, September 18 
Choice of excursions. 
(a) By special cars to Akron—Goodrich 
Rubber Co. (limited to 200), Knight 
Chemical Stoneware plant, and possibly 
pottery works. 
(6) Auto trip to Wadsworth, near Akron— 
Ohio Match Co., Ohio Salt Works, and 
Ohio Brass Co. (limited to 50). 
The usual meetings, including the annual 
election of officers, will be held by all the 
Divisions, and by the Rubber Chemistry Sec- 
tion, with the following special program: 
