His technical innovations in nematological methods included fixation and preservation techniques; the Cobb metal mounting slide; improvements in photography and microscopic equipment; and the first device to use flotation to remove nematodes from soil.

An individual with a variety of skills, he made significant contributions to a number of scientific disciplines and the USDA Nematology Laboratory, originally established with him as the director, continues today.

[1] He was the father of Frjeda Blanchard,[1] the geneticist who first demonstrated Mendelian inheritance in reptiles.

This list can be accessed via the Biodiversity Heritage Library.

This article about an American zoologist is a stub.