CONTENTS 
Page. 
1. ReEporTS FOR THE YEAR 191]1:— 
a. Report of the Officers of the Board.................. 7 
b. Twenty-third Annual Report of the Director ....... 12 
2. ScIENTIFIC PAPERS :— 
a. A study of the problem of water absorption.— 
By. Lows Otto Kunkel. . oo... eee 26 
b. A consideration of the physiology and life history of a 
parasitic Botrytis on pepper and lettuce.— 
Bay Qeoruei ws. vb ettier....3. - . sf ages te ates 41 
c. Biometric data on the inflorescence and fruit of Crinum 
Longifolium.— 
BY ST APCRUT. HOTTA. 6 oe ys ssw vag bn) bene 75 
d. The relation between the density of cell saps and the 
freezing points of leaves.— 
By William Woodward Ohlweiler.............. 101 
e. A monograph of the North American Usneacexe.— 
i Be Or OW, FF i i kes Gee es 133 
f. The effect of toluol and CS: upon the micro-flora and 
fauna of the soil.— 
Da Pests SONUDY 855 6 ost OV Oe PE no eee ae 147 
The relation of alge to dissolved oxygen and carbon- 
dioxide. With special reference to carbonates.— 
By Charles Oscar Chambers... ...........00405. 171 
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