616 



INDEX. 



Wharton (W. L.) on the phenomena of 

 intermitting springs, 364. 



"Whewell( Rev. W. ), Royal medal adjudged 

 to, 269, 351 ; address at anniversary of 

 the Geological Society, 434, 508. 



Williamson (W. C.) on fossil fishes in the 

 Lancashire coal-field, 86. 



Woehler ( Prof. ) on the preparation of bi- 

 carbonate of potash, 216 ; on the definite 

 combination of oxide of silver and oxide 

 of lead, 217. 



Worm, vegetable mould produced by the 

 digestive process of the, 90. 



Wrede's theory of the absorption of light, 

 on, 114. 



Wright ( T. ) on Dr. Buckland's theory of 

 the action of the siphuncle in the pearly 

 nautilus, 503. 



Xanthophylle, the colouring matter of 

 leaves in autumn, 135. 



Young's (J. R.) Analytical Geometry, 602. 



Zante, on the geology of, 87. 



Zinken (Von), on a new locality of arse- 

 nical copper in Chili, 217. 



Zoological Society, 211, 441, 526, 592. 



Zoology: — on vertebrate animals, 92; Au- 

 stralian quadrupeds, 95 ; on three speci- 

 smens of the genus Felis, 213 ; new spe- 

 cies of opossum, 215; new species of 

 fox, 441 ; Dasypus hybridus, 442; un- 

 described species of the genus Mus, 442 ; 

 small Rodents, 445 ; on the genus Ga- 

 lictis, 529; the Once of Buffbn, 530; 

 new species of Sciuroptera, 530 ; new 

 species of fox, 530 ; new species of Gib- 

 bon, 530 ; quadrupeds from South Afri- 

 ca, 531 ; proboscis monkey, 592 ; on 

 several undescribed quadrupeds, 596 ; 

 on the genus Kemas, 598 ; cranium of 

 an orang outang, 599 ; uterine foetus of 

 a kangaroo, 600; paper nautilus, 601. 



END OF THE TWELFTH VOLUME. 



LONDON: 



PRINTED BY RICHARD AND JOHN K. TAYLOR, 

 RED LION COURT, FLEET STREET. 



FLAltlMAM. 



