INDEX 



125 



Salivary glands, 58, 92 



Samuel, Book of, 85 



Sand-martin, 10, 11 



San Francisco, plague in, 94 



Sarcopsyllidse, 17, 74, 109 



Seals, 14 



Segmented structure, 22 



Sense organs, 49 



Sexual differences, 23, 51 



Sexual organs, 51 



Simond, 87 



Siphonaptera, description 



Order, 108 

 Size of fleas, 22 

 Species, number of, 4 

 Spilopsyllus cuniculi, 77 

 Spines 23, 25 

 Stephanocircus, 27 

 Sternites, 32 

 Stigmata, 59 

 Stomach, 56 



bacilli in, 93 



St Paul's Cathedral, 29 

 Sucking, method of, 43 

 Suctoria, 35 

 Swift, African, 11 



Taste, sense of, 50 



Tergites, 32 



Testes, 51 



Thaumopsylla breviceps, 106 



Thorax, 29 



Tiraboschi, Dr Carlo, 70 



Tracheae, 59 



Trapping hosts of fleas, 113 



Trichosurus, 15 



Typhloceras poppei, 25 



Ungulates, 13 

 of Urinary tubules, 59 



Variation, geographical, 16 



Verjbitski, 88 



Vermipsylla, on Ungulates, 13 



Wings, relics of, 4, 31 

 Woodward, Dr, 15 



Xenopsylla cheopis, 11, 89, 102, 

 104 



Yersin, 84 



Zoological Gardens, fleas in, 16, 

 66 



CAMBRIDGE I PRINTED BY JOHN CI/AY, M.A. AT THE UNIVERSITY PRESS 



