Rev. Fr. Entomol. — Revue Frangaise d’Entomologie. 
Riv. Patol. Veg. — Rivista di Patologia Vegetale. 
Rostl. Vyroba — Rostlinna Vyroba. 
Rothamsted Exp. Sta. Harpenden Annu. Rep. — Rothamsted 
Experimental Station, Harpenden, Annual Report. 
S. Beekeep. — Southern Beekeeper. 
Sci. Agr. — Scientific Agriculture. 
Sci. Tec. Agrar. — (Exact source unknown). 
Scot. Natur. — Scottish Naturalist. 
Seale-Hayne Agr. Coll. Pamph.— Seale-Hayne Agricultural 
College Pamphlet. 
Sel. Khoz. Uzb. — Sel’skoe Khozyaistvo Uzbekistana. 
Seminar Rep. Univ. Wis. — Seminar Report, University of Wis- 
consin. 
Soc. Sci. Fenn. Commentat. Biol. — Societas Scientiarum Fen- 
nica Commentationes Biologicae. 
Sots. Nauka Tekh. — Sotsialisticheskaya Nauka i Tekhnika. 
Stavropol-Caucasian Agr. Exp. Sta. Stavropol Munic. Auth. — 
Stavropol-Caucasian Agricultural Experiment Station of the 
Stavropol Municipal Authority (Stavropol). 
Sugar Beet Grower Quart. — Sugar Beet Grower Quarterly. 
Tidsskr. Planteavl — Tidsskrift for Planteavl. 
Tijdschr. Plantenziekten — Tijdschrift over Plantenziekten. 
Tr. Khar’kov. Sel’skokhoz. Inst. — Trudy Khar’kovskogo Sel’- 
skokhozyaistvennogo Instituta. 
Tr. Sverdlovsk. Sel’skokhoz. Inst. — Trudy Sverdlovskogo Sel’- 
skokhozyaistvennogo Instituta. 
Tr. Vses. Inst. Zashch. Rast. — Trudy Vsesoyuznogo Instituta 
Zashchity Rastenii. 
Tr. Vses. Nauch.-Issled. Inst. Zashch. Rast. — Trudy Vsesoyuz- 
nogo Nauchno-Issledovatel’skogo Instituta Zashchity Ras- 
tenu. 
Trans. Brit. Mycol. Soc. — Transactions of the British Myco- 
logical Society. 
Trans. Highland Agr. Soc. Scot. — Transactions of the High- 
land and Agricultural Society of Scotland. 
Trans. Roy. Soc. Edinburgh — Transactions of the Royal Soci- 
ety of Edinburgh. 
Turkestan Entomol. Sta. — Turkestan Entomological Station 
(Tashkent). 
U.S. Dep. Agr. Bull. — United States Department of Agricul- 
ture Bulletin. 
U.S. Dep. Agr. Bur. Entomol. Bull. — United States Depart- 
ment of Agriculture, Bureau of Entomology, Bulletin. 
U.S. Dep. Agr. Farmers Bull. — United States Department of 
Agriculture Farmers’ Bulletin. 
U.S. Dep. Agr. Tech. Bull. — United States Department of 
Agriculture Technical Bulletin. 
Uchen. Zap. Turkm. Gos. Ped. Inst. Ser. Biol. Georgr. Nauk. — 
(Exact source unknown). 
Univ. Wash. Publ. Biol. — University of Washington Publica- 
tions in Biology. 
Valtion Maatalousk. Julk.— Valtion Maatalouskoetoiminnan 
Julkaisuja. 
Valtion Maatalousk. Tiedonantoja — Valtion Maatalouskoe- 
toiminnan Tiedonantoja. 
Vaxtskyddsnotiser — Vaxtskyddsnotiser 
Vaxtskyddsanstalt. 
Véd. Pr. Vyzk. Ustavu Krmivdiského CSAZV v Brné — Vé- 
decké Pracé V¥zkumného Ustavu Krmivafrského CSAZV v 
Brné. 
Verh. Deut. Ges. Angew. Entomol. — Verhandlungen der Deut- 
schen Gesellschaft fiir Angewandte Entomologie. 
utgivna av _ Statens’ 
24 (27005—4000—2-74) 
Verh. 7th Int. Kongr. Entomol. (Berlin) — Verhandeliaaae 
des VII Internationaler Kongress fiir Entomologie (Berlin), 
Versl. Meded. Plantenziektenk. Dienst Wageningen — Verslagen 
en Mededeelingen van den Plantenziektenkundigen Dienst 
te Wageningen. | 
Vinnitz’ka Obl. s.-g. Dosl. Sta. [Vinnitza Reg. Agr. Exp. Sta] 
— (Exact source unknown). 
Vissh Selskostopanski Inst. ‘Georgi Dimitrov” Agron. Fakul. 
Nauch. Trudove — (Exact source unknown). 
W.Va. Agr. Exp. Sta. Bull.— West Virginia Agricultural Ex- 
periment Station Bulletin. 
Wageningen Proefsta. Akker- Weideb. Gestencilde Versl. Inter- 
prov. Proeven— Wageningen Proefstation voor de Akker- 
en Weidebouw. Gestencilde Verslagen van Interprovinciale 
Proeven. 
Warsaw Hort. Soc. Annu.— Warsaw Horticultural Society’s 
Annual. 
Wash. Agr. Exp. Sta. Bull. — Washington Agricultural Experi- 
ment Station Bulletin. 
Wash. Agr. Ext. Serv. Ext. Mimeo. — Washington Agricultural 
Extension Service Extension Mimeograph. 
Wash. Farmer — Washington Farmer. 
Welsh J. Agr. — Welsh Journal of Agriculture. 
West. Can. Beekeep. — Western Canada Beekeeper. 
Wis. Univ. Ext. Serv. Spec. Circ. — Wisconsin University Ex- 
tension Service Special Circular. 
Wkly. Market News — Weekly Market News. 
Yearb. Dep. Agr. Petrograd — Yearbook of the Department oi 
Agriculture, Petrograd. 
Z. Angew. Entomol. — Zeitschrift fiir Angewandte Entomologie, 
Z. Angew. Zool. — Zeitschrift fir Angewandte Zoologie. 
Z. Morphol. Okol. Tiere — Zeitschrift fiir Morphologie und 
Okologie der Tiere. 
Z. Pflanzenkr. — Zeitschrift fiir Pflanzenkrankheiten. 
Z. Pflanzenkr. (Pflanzenpathol.) Pflanzenschutz — Zeitschrifi 
fiir Pflanzenkrankheiten (Pflanzenpathologie) und Pflanzen: 
schutz. 
_ Pflanzenkr. Pflanzenschutz — Zeitschrift fiir Pflanzenkrank 
heiten und Pflanzenschutz. 
. Vergl. Physiol. — Zeitschrift fiir Vergleichende Physiologie 
. Wiss. InsektBiol. — Zeitschrift fiir Wissenschaftliche Insek 
tenbiologie. 
Z. Zuckerind. Cechoslov. Republ. — Zeitschrift fir die Zucker 
industrie der Cechoslovakischen Republik. 
Zakhyst Rosl. — Zakhyst Roslyn. 
Zapadn. Obl. S.-Kh. Op. Stantz. — (Exact source unknown). 
Zashch, Rast. (Plant Prot.-Leningrad) — Zashchita Rasteni 
(Plant Protection — Leningrad). 
Zashch. Rast. Vred. Bolez. — Zashchita Rastenii ot Vreditele 
i Boleznei. 
Zborn. Prir. Nauke Matica Srp. — Zbornik na Prirodne Nauki 
Matica Srpska. (Novi Sad). 
Zemstvo Govt. Moscow — Zemstvo of the Government of Mos 
cow. 
Zemstvo Govt. Orel — Zemstvo of the Government of Orel. 
Zemstvo Govt. Riazan — Zemstvo of the Government of Riazan 
Zemstvo Govt. Volhynia, Jitomir — Zemstvo of the Governmen 
of Volhynia, Jitomir. 
Zh. Obshch. Biol. — Zhurnal Obshchei Biologii. 
Zool. Jahrb. Abt. Syst. Okol. Geogr. Tiere — Zoologische Jahr 
bucher Abteilung fiir Systemik Okologie und Geographi 
der Tiere. 
NN N 
US ISSN 0073-490. 
