Vol. XXIII 
MARCH 3, 1923 
JOURNAL OP 
CONTENTS 
Gray Mold of Castor Bean - - - 
’ ' G. M. GODFREY . '' 
■ - ; (Contribution from Bureau at Plant Industry) 
Influence of the Specific Gravity of Hens’ Eggs on Fertility, 
Hatching Power* and Growth of Cliicks - - - 
F. E. MUSSEHL and D. L. HALBERSLEBEN 
( Contribution from Nebraska Agricultural Experiment Station) 
Time Required for Food to Pass Through the Intestinal 
Tract of Fowls - -------- 
B. F. KAUPP and J. E. IVEY 
( Contribution from Norib Carolina Agricultural Experiment Station) 
Effectiveness of Mulches in Preserving Soil Moisture 
F. S, HARRIS and H. H. YAO 
(Contribution from TJtab Agricultural Experiment Station) 
Origin of the Central and Ostiolar Cavities in Pycnidia of 
Certain Fungous Parasites of Fruits - - - 
. • 1 ‘ B. Oa DODGE . 
• ■ -. (Contribution from Bureau of Plant Industry) . -/ 
Further Studies on the Pathogenicity of Corticium ragum 
on the Potato as Affected hy Soil Temperature - 
B.L. RICHARDS 
- " (Contribution from Utah Agricultural Experiment Station ) 
Page 
679 
- 717 
721 
727 
743 
- 761 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE 
WITH THE COOPERATION OF THE ASSOCIATION 
OF LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
GOVERN PRINTING OJFICE 
