CAMBRIDGE MANUALS SERIES 



Cloth, 1.S'. net each ; leather, 2s. 6c?. net each 

 Ainonj; the VDlunifS already published are the following: 



House-Flies and How They Spread Disease. By 



('. (J. IIkwitt. 



" Dr Hewitt's little volume is especially comprehensive and well arranged. 

 The book contains a bibliography and is sufficiently indexed and illustrated, making 

 altot,'ether, perhaps, as good a manual on the subject as could at the present state 

 of our knowledge be produced in similar compass." — Times 



The Life-Story of Insects. By Prof. G. H. Carpenter. 



Bees and Wasps. By O. H. Latter, M.A., F.E.S. 



Spiders. By Cecil Warburton, M.A. 



The Flea. By H. Russell. 



Earthworms and their Alhes. By F. E. Beddard, M.A., 



Life in the Sea. By James Johnstone, D.Sc. 



A list of the eighty-six volumes now rendy will he 

 sent on application. 



The Vertebrate Skeleton. By S. H. Reynolds, M.A., 



Professor of Geology in the University of Bristol. Second edition. 

 Demy 8vo. \bs. net. Cambridge Zoological Series. 



Observations upon the Natural History of Epidemic 



Diarrhoea. By 0. H. Peters, M.D., D.P.H. Large Royal 8vu. With 

 3« tallies and 9 charts. Is. net. 



The Journal of Hygiene. Edited by G. H. F. Nuttall, 



M.D., Pli.D., Sc.D., F.R.S., in conjunction with J. S. Haldane, M.D., 



F.R.S., A. Xewsholme, C.B., M.D., C. .J. Martin, D.Sc, F.R.S., J. C. G. 



Ledinghaji, M.B., D.Sc, and G. S. Graham-Smith, M.D. 



The Journal is issued as material accumulates. A volume containing 



about 500 pages, with plates and figures, is issued annually. The subscri])tion 



Ijrice is £L Is. net per volume (post free), payable in advance; single numbers, 



7s. net. 



Parasitology. Edited by G. H. F. Nuttall, F.R.S., and 

 A. E. Shipley, F.R.S. 

 Parasitology is published about four times a year. A volume containing 

 about 400 to 500 pages, with plates and figures, is issued annually. The 

 subscription price is £1. 10s. net per volume (post free), payable in advance ; 

 single numbers, 10s. net. Subscribers to the Journal of Hygiene may obtain 

 single numbers of Parasitology at the reduced rate of 7s. Qd. net, or may 

 become subscribers at the reduced rate of £1. Is. 



Cambridge University Press 

 C. F. Clay, Manager : Fetter Lane, London 



