The Guinea Pig

Inducing Extraseasonal Breeding in Goats and Sheep by Controlled Lighting

Timber Growing and Logging and Turpentining Practices in the Southern Pine Region: Measures Necessary to Keep Forest Land Productive and to Produce Full Timber Crops, Issues 201-225

Selenium Occurrence in Certain Soils in the United States, with a Discussion of Related Topics: Fifth Report, Issues 751-775