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Some miscellaneous results of the work of the Bureau of Entomology, IX
A survey of apple clones in the United States
Biology and biological control of common St. Johnswort
Resales at Maryland tobacco auctions
Sex determination of lepidopterous pupae
Market quality and rate of respiration of head lettuce held in low-oxygen atmospheres
Wax and related coatings for horticultural products; a bibliography
Some snails and slugs of quarantine significance to the United States
Bait stations as a means of rodenticide presentation to control Columbian ground squirrels
Nitrogen, its effect on transit temperatures and market quality of western lettuce shipped in piggyback trailers