488 Scientific Proceedings, Royal Dublin Society. 



Eefeeences. 



Bekry. Jr. Agric. Sc, 11, 78. [1921.] 



Cbowther. , 1,.149. [1906] 



Nils Hansson. Utfodringslara, page 487. [1916.] 



PiiiTZKEK. Schweiz. Apoth. Ztg., 57, 167-9. [1919.] 



. EuHLE. Z. Nahr. Geiiussm., 38, 277-85. [1919.] 



Speik. Trans. High, and Agric. Soc, Scot., 6, fifth series, 83. [1894.] 



,8, , 269. [1896.] 



— ,9, , 296. [1897.] 



Tuener, Shaw, Norton, Wright. Jr. Agric. Ees., 6, 167. [1919.] 



Wilson. Eoy. Dub. Soc. Sc. Proc, 16 (N.S.), No. 3. [1920.] 



Wing and Fookd. Bull. 22, Agric. Exp. Stn., Coll. of Agric, Cornel 

 University. [1904.] 



