Publications. xi 



Miscellaneous Publications Issued in 1919. 



No. 536. Papers from the Biological Laboratory (list). 8 pages. 

 No. 537. List of Available bulletins. 2 pages. 



Biological Publications, 1919. 



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



125. The Variation of Ayrshire Cows in the Quality and Fat Content 



of their Milk. By Raymond Pearl and John Rice Miner. Jour- 

 nal of Agricultural Research. Vol. XVII. No. 6. pp. 285-322. 



126. Studies in Milk Secretion. 



V. On the Variations and Correlations of Milk Secretion with 

 Age in Jersey Cattle. By John W. Gowen. Genetics. Vol. 5, 

 No. 2. 



127. Studies in Milk Secretion. 



VI. On the Variations and Correlations of Butter-Fat Percentage 

 with Age in Jersey Cattle. By John W. Gowen. Genetics. Vol- 

 5, No. 3. 



128. Studies in Milk Secretion. 



VII. Transmitting Qualities of Jersey Sires for Milk Yield, But- 

 ter-Fat Percentage and Butter-Fat. By Raymond Pearl, John 

 W. Gowen and John Rice Miner. Maine Agricultural Experi- 

 ment Station, Annual Report for 1919, pp. 89-205. 



129. Conformation and its Relation to the Milk Producing Capacity ia 



Jersey Cattle. By John W. Gowen. Jour. Dairy Science, Vol. 

 3, No. 1. 



130. Report of Progress on Animal Husbandry Investigations in 1919. 



By John W. Gowen. Maine Agricultural Experiment Station,. 

 Annual Report for 1919, pp. 



131. On Variation in Tartary Buckwheat, Fagopyrum tataricum (L) 



Gaertn. By Jacob Zinn. Genetics. Vol. 4. No. 6. 



Miscellaneous : Appliances and Methods for Pedigree Poultry Breed- 

 ing at the Maine Station. By John W. Gowen. Maine Agri- 

 cultural Experiment Station, Annual Report for 1919. pp. 65-89. 



A Biometrical Study of Crossing Over. On the Mechanism of Cross- 

 ing Over in the Third Chromosome of Drosophila Melanogaster.. 

 By John W. Gowen, Genetics. Vol. 4. No. 3. pp. 205-250. 



Entomological Papers, 1919. 



Ent. No. 101. The Meadow Plant Bug, Miris dolabratus. Herbert Os- 

 born. Maine Agricultural Experiment Station Report 

 for 1919, pp. 1-16, 4 plates. 



Ent. No. 102. Three Pink and Green Aphids of the Rose. Edith M. 

 Patch. Maine Agricultural Experiment Station Re- 

 port for 1919 pp. 



