Ths Entomologist's Record and Journal of Variation 



7s. per volume (including a Special Index of every name used 

 in the volume). Send Post free. 



This is now the acknowledged leading scientific entomological Magazine 

 in Britain, and contains all the most recent views of writers in Entomological 

 science all over the world. The monthly summaries of work done in different 

 countries make this a ready means for every scientific worker to keep himself 

 au fait with the advance of science. The advance of Philosophical and 

 Biological questions relating to insects is made a special feature as is also the 

 causes of their variation. 



Monthly critiques of the articles in the leading German and American 

 entomological magazines. A monthly summary of the scientific progress made 

 by the Societies. Current notes on entomological science from all parts of the 

 world. Practical Hints for collectors, as to breeding, capturing and preserving 



durne 7p, should be sent by all scientific 



J. W. TUTT, F. E. S., 



Raleigh Villa, Westwmbe Hill, Blackheath, England. ,*» 



PLASTER CASTS OF THE FOLLOWING MAMMALIA 



with dentition in good preservation, made under direction of 

 Professor E. D. Cope may be had by application to Jacob 



Pkenacodus primaevus Cope, (Wyoming) £100.00. Hy- 



racotherium venticolum Cope, (Wyoming) $50.00. Protohippus 

 nucabilis Leidy, skull $7.00. Protohippus pachyops Cope, skulls 

 of adult and young, and P. fossulatus Cope, skull, $5.00 each. 

 Tetrahelodon s/iepardi'i "Leidx . mandibular ramus and symphysis 

 with two molars, $20.00. Dibelodon tropicus Cope, do., $15.00 j 

 Mastodon precursor Cope, last molar $5.00. The horses and 

 mastodons from the Cenozoic beds of Texas, are uncolored 



