REPORT 
OF THE 
TWENTY-EIGHTH ANNUAL MEETING 
OF 
THE OHIO ACADEMY OF SCIENCE 
The Twenty-eighth Annual Meeting of the Ohio Academy 
of Science was held at Ohio State University, Columbus, Ohio, 
May 30 to June 1, 1918, under the presidency of Professor 
Francis L. Landacre. Forty-seven members were registered 
as in attendance; ten new members were elected. 
After adjournment of the formal sessions, the botanists and 
zoologists went on an automobile excursion to the picturesque 
and ecologically interesting Sugar Grove region, and the 
geologists took a longer trip for the study of the rock series 
(Niagara to Carboniferous) and topography between Hillsboro 
and the Scioto River. 
GENERAL PROGRAM 
TuurRsDAY, May 30. 
10:30 a. m—Business Meeting. 
12:30 p. m—Luncheon. 
2:00 p. m—Reading of Papers, General Session. 
4:00 p. m~—Demonstrations. 
6:00 p. m—Dinner, followed by Address of the President, Professor 
Francis L. Landacre, Ohio State University, “‘The 
Origin of the Cerebral Ganglia of the Vertebrates.” 
Fripay, May 31. 
9:00 a. M—Reading of Papers, Sectional Session. 
12:30 p. m—Luncheon. 
2:00 p. ma——Adjourned Business Meeting. 
3:00 p. m—Reading of Papers, Sectional Session. 
6:00 Pp. Ma——Supper. 
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