J. F., on a variety of Bembidium saxatile, 60. Definition of the term 'species,' 4; of the term 'variety,' 4. Delphax, on the development of the wings of, 45. Dermestes vulpinus, Fabr.
"On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera"
Thomas Vernon Wollaston