The pleural and sternal sclerites of the lepidopterous thorax. : A contribution to the revision of the genus Pyrgus in America (Lepidoptera, Hesperidae). The effect of hydrogen ion concentration upon the toxicity of nicotine, pyridine, and methylpyrrolidine to mosquito larvae

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035 ‡a(OCoLC)14982838
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090 ‡aLD3234.M267 1931 ‡b.S547
100 1 ‡aShepard, Harold Henry, ‡d1898-
245 1 4 ‡aThe pleural and sternal sclerites of the lepidopterous thorax. : ‡bA contribution to the revision of the genus Pyrgus in America (Lepidoptera, Hesperidae). The effect of hydrogen ion concentration upon the toxicity of nicotine, pyridine, and methylpyrrolidine to mosquito larvae.
264 1 ‡a[Place of publication not identified] : ‡b[publisher not identified], ‡c1931.
300 ‡a40 [vi] 98, 78 leaves : ‡billustrations, append. ; ‡c28 cm
336 ‡atext ‡btxt ‡2rdacontent
337 ‡aunmediated ‡bn ‡2rdamedia
338 ‡avolume ‡bnc ‡2rdacarrier
502 ‡aThesis (Ph.D.)--Massachusetts Agricultural College, 1931.
538 ‡aMode of access: Internet.
650 0 ‡aLepidoptera ‡xAnatomy.
690 ‡aTheses ‡xEntomology ‡xDoctoral.
740 4 ‡aThe effect of hydrogen ion concentration upon the toxicity of nicotine, pyridine, and methylpyrrolidine to mosquito larvae.
740 2 ‡aA contribution to the revision of the genus Pyrgus in America (Lepidoptera, Hesperidae)
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