The small number of berries reaching maturity in Smilacina racemosa, and their few-seeded condition, invited a reinvestigation of the embryology. The embryo sac development had previously been reported by McAllister in 1913. Modern knowledge of fruit formation, of apomictic development,…

This work, the third in a series on white spruce bark, is concerned with the unsaponifiable portion of the ether extractives of the bark. Research on these extractives was begun because bark is a major waste product of the Canadian…