Apple pollinatiion studies in the Annapolis Valley, N.S.,Canada, 1928-1932 / under the direction of W. H. Brittain.
Apples, Breeding, Fertilization of plants by insects
Publisher: Ottawa :Department of Agriculture,1933.
Sorry, we are unable to provide the full text but you may find it at the following location(s):
http://www.biodiversitylibrary... (external link)