* ) 
468 Hope St., trovi&ence, R. I. 
Feb. 1, 1913 
laboratory of Systematic Botany, Harvard University, 
To J. Franklin Collins, Dr. 
76 uncolored lantern slides, at 30^ . 22.80 
21 colored lantern slides, at various prices, average 60^ 12.6 
35.40 
