Some Kinds of Life: An Account of Volume Two of The Collected Stories of Philip K. Dick: Second Variety.

Tolley, Michael J. "Some Kinds of Life: An Account of Volume Two of The Collected Stories of Philip K. Dick: Second Variety." ASFR (Australian S. F. Review) #24 = 2nd series 5.2 (Winter 1990): 6-17.

See for "James P. Crow," "Second Variety," "A Surface Raid," and other Dick stories from 1952-55. ("Second Variety" in MJT's title is the title of vol. 2 of Collected Stories.)