16 The traveller will find it very convenient to carry about him a vial having a broad mouth, closed by a tight cork. In this, should be contained a piece of camphor, or, still better, of sponge, soaked in ether, to kill the insects collected. From this, the specimens should be transferred to other… … Ether will be found most effective in killing all insects that cannot or ought not to be immersed in alcohol. All those that can support the immersion in this liquid without injury may readily be killed in this way. The camphor should always be fixed in the box containing insects, as it would break…
Smithsonian Institution · Natural history · Zoological specimens · Botanical specimens · Museum techniques
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from Dr. Sulzers Abgekürtze Geschichte der Insecten. Nach dem Linaeischen System / [Johann Heinrich Sulzer]. (1776)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b30415275-146-1.webp)
![An illustration from Episodes of insect life / by Acheta Domestica, [pseud.] ;edited and revised by J.G. Wood. (1879)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b28066340-50-1.webp)
