INDEX. 



621 



Wheat-flour, portion of husk, 236. 

 Wollaston's and Coddington's lenses, 



33. 



Wood, mode of cutting sections, 99. 

 Woodward, Mr., on polarised light. 142. 

 Wool, 248. 



.XANTHIDIA, 325. 



YEAST-PLANT, 181. 

 Yew, section of, 250. 



ZOOLOGICAL Society's aquaria, 406. 

 Zoophytes, 342. 



skeletons of, 



preservation of polypidoms of, 408, 



Zygoceros rhombus, 316. 



THE END. 



K. CLAY, PRINTER, BREAD STREET HILL. 



