Two volumes bound in one. Reprint of the original edition published in Leipzig in 1862-1863. A bibliography of entomology, being one of the most exhaustive works listed in Besterman, with about 22,500 works cited (Besterman 2301). Entomology was pioneered by William Kirby and William Spence, both beetle collectors, who brought entomology to the forefront of respectable science during the period of 1815 to 1826 with their publication of four books titled Introduction to Entomology, the first popular book on insects in English.