Paul Smith Welch

1882

• Culture methods for invertebrate animals
• Studies on the Enchytracidae of North America
• Zoology; A Text-Book for Universities, Colleges and Normal Schools
• Limnological methods
• Limnological methods
• Limnology
• Limnology
• Limnology
• Oligochaeta collected in Greenland by the Croker Land Expedition
• Studies on the Enchytræidæ of North America