( ci ) 



in the University Entomological IVIviseum. In 1873 he was 

 appointed Custodian of these Entomological Collections, and 

 in 1874, Professor of Zoology in the University. At the 

 time of his death he was a Director of the Naturhistorisches 

 Hof museum. 



Brauer's researches into the biology of the Oestridx led him 

 to found the two great divisions of Diptera — " Cyclorrhapha " 

 and " Orthorrhapha," based upon the form of the pupa. 

 Further researches into the metamorphoses not only of 

 Oestrida', but throughout the Order, led to the publication, in 

 1883, of a new "System of Diptera," which, with certain 

 modifications, is still considered to be the best as yet brought 

 forward. 



Latterly Brauer turned his attention to the parasitic 

 Muscidai [Tachinida', etc.), and, in collaboration with Julius 

 von Bergenstamm, published a work which marks a consider- 

 able advance in the classification of these groups. 



The fundamental importance of Brauer's discoveries in two 

 such sharply conti'asted sections as the archaic Neuroptera and 

 tlie comparatively modern, highly-specialized Diptera, fitted him 

 in a very special way to study the broad and difficult question 

 of the classification of the Insecta. His conclusions (System- 

 atisch Zool. Studien, SB. Akad. Wien. xci. Abth. i. 1885, p. 

 374), " based upon recent advances in anatomy and em- 

 bryology," were adopted in Dr. W. Hatchett Jackson's 

 learned edition of Rolleston's " Forms of Animal Life " 

 (Oxford, 1888). The most prominent feature of Brauer's 

 classification is the splitting up of the Neuroptera into no less 

 than 7 Orders out of the entire number of 17 adopted by him. 

 An interesting discussion and criticism of the system appeared 

 in Dr. David Sharp's contribution to the Cambridge Natural 

 History (Insects, Pt. i., London, 1895, p. 175). 



I have to thank Mr. J. E. Collin for much kind help in 

 drawing up this brief account of the distinguished scientific 

 man whose loss will be so deeply felt by biological Science 

 thi'oughout the world. 



The Fellows of this Society will feel, in common with the 

 members of other associations occupying this building, deep 

 regret at the sad death of the late Resident Librarian, Mr. 



