كتب ذات صلة

Arsenic in papers and fabrics.

Residual arsenic on Pennsylvania apples in 1932

• William J. Farrer, and the results of his work.
  المؤلفون: Guthrie, Frederick Bickell.
• Seed wheat: an investigation and discussion of the relative value as seed of large plump and small shrivelled grains.
  المؤلفون: Cobb, Nathan Augustus
• Report on parasitic and injurious insects.
  المؤلفون: Froggartt, Walter Wilson.