1910. The Fauna of a Solution Pond. Proc. Ind. Acad. Science for 1910, pp. 395-442.

Includes a discussion of their interrelations.

Simroth, H.

1891. Die Entstehung der Landtiere. Ein Biologische Versuch. pp. 492. Leipzig.

Steuer, A.

1910. Planktonkunde. pp. 723. Leipzig.

A general treatise on plankton.

Watson, J. R.

1911. A Contribution to the Study of the Ecological Distribution of the Animal Life of North Central New Mexico with Especial Attention to the Insects. First Ann. Rep. New Mexico Nat. Resource and Conserv. Comm., pp. 67-117.

Description, lists, and observations on the animal and plant associations of the arid region.