How to collect and preserve insects von Lutz, Frank E.

Experiments with Drosophila ampelophila concerning evolution von Lutz, Frank E.

Inhaltsverzeichnis

How to collect and preserve insects By Frank E. Lutz von Lutz, Frank E.

How to collect and preserve insects von Lutz, Frank E.

Our common butterflies By F. E. Lutz and F. E. Watson von Lutz, Frank E.

Our common butterflies von Lutz, Frank E.

Index to the generic names in Volume 29 Petrunkevitch's "Catalogue of spiders of North, Central, and South America and adjacent islands." von Lutz, Frank E.

The variation and correlations of certain taxonomic characters of gryllus von Lutz, Frank E.