r.ir.LioGRAPFiv. 159 



Latin. (Much used for diagnoses, as well as for many 

 independent works ) 



German. (Periodicals too numerous to mention; those 

 published at Berlin, Vienna, Dresden, Stettin, and Frankfort- 

 on-]\Iain, are perhaps the most important.) 



Class B. 



Languages containing a large amount of important Entomo- 

 logical information^ but which are not placed in Class A, 

 because much of the ivork done by Entomologists in the 

 countries where they are spoken is published in one 

 or other of the four principal languages i^icluded in 

 Class A. 



Dutch. (Principal periodical, Tijdschrift voor Entomologie ; 

 chiefly important for the Lepidoptcra of Holland, and the 

 islands of the Malayan Archipelago. 



Swedish. (Most important periodicals : Entomologisk 

 Tidskrift ; and the publications of the Konglige Vetenskaps 

 Akademie at Stockholm. The Swedes often write in Latin, 

 and the Finnish Entomologists (the Scientific Society at 

 Helsingfors often issues valuable works) usually wTite in Latin, 

 Swedish, or German. I have seen books on Botany in Finnish, 

 but none on Entomology.) 



Russian. (Most important publications : Those of the 

 Academy of St. Petersburg, the Society of Naturalists at 

 Moscow, and the " Horte Societatis Entomologicai Rossicce." 

 The Russians generally write in Latin, French, or German, but 

 there are many extremely important Entomological papers, 

 especially on insect anatomy and morphology, which are only 

 published in Russian.) 



