Publications. xi 



Miscellaneous Publications Issued in 1918 

 No. 535 How to Control Potato Enemies. 16 pages. 

 Biological Publications, 191 8. 



In the numbered series of "Papers from the Biological Laboratory": 



120. Studies in Inheritance of Certain Characters of Crosses between 



Dairy and Beef Breeds of Cattle. By John W. Gowen. Jour- 

 nal of Agricultural Research Vol. XV, No. 1, pp. 1-57. 



121. Studies on Milk Secretion. 



IV. On the Variation and Mode of Secretion of Milk Solids. 

 Journal of Agricultural Research Vol. No. pp. 



122. Inheritance Studies of Certain Color and Horn Characters in First 



Generation Crosses of Dairy and Beef Breeds. By John W. 

 Gowen. Maine Agricultural Experiment Station, Annual Re- 

 port, for 1918, pp. 129-148. 



123. Inheritance of Coat Color and Other Characters in First Gener- 



ation Crosses of Dairy and Beef Breeds of Cattle. By John 

 W. Gowen. Proceedings of the National Academy of Sciences. 



124. Report of Progress on Animal Husbandry Investigations in 1918. 



By John W. Gowen. Maine Agricultural Experiment Station, 

 Annual Report for 1918, pp. 



Entomological Papers From the Maine Agricultural 

 Experiment Station, 1918. 



Ent. 97. Eastern Aphids : A Few Species of Prociphilus. By Edith 

 M. Patch. Bui. 270, Me. Agr. Exp. Station. 



Ent. 98. Food Plant Catalogue of the Aphididae of the World. By 

 Edith M. Patch. Bui. 270, Me. Agr. Exp. Station. 



Ent. 99. The Meadow Plant Bug, Miris dolabratus. By Herbert Os- 

 born. Journal of Agricultural Research, Vol. 15, No. 3. 



Ent. 100. The Biology of Maine Species of Altica. By William Col- 

 cord Woods. Bui. 273, Me. Agr. Exp. Station. 

 (Bulletins 269 to 275 constitute the Report for 1918. In binding, 



pages i-xvi at the end of this bulletin should be detached and placed 



before Bulletin 269 which begins with page 1) 



STAFF NOTES 



Doctor Raymond Pearl, Biologist to the Station, on leave 

 on war work since June 1917, resigned January 1, 1918 to be- 

 come the head of the Department of Biometry and Vital Sta- 

 tistics at the newly established School of Hygiene and Public 

 Health of the Johns Hopkins University. He continues with the 

 Maine Station as Collaborator and will analyze and publish as 



