320 



INDEX. 



Vegetable balls, 98 



brimstone, 38 



flannel, 179 



wasps, 230 



Vinegar-plant, 301 

 Volvox globator, 128 



Water blossom, 1 1 2 



Water net, 121 

 What is nostoc ? 100 



Xylaria vaporaria, 267 



Zone of dust showers, 183 

 Zoospores of Pcronospora, 260 

 I Zygospores of fly-mould, 243 



THE END. 



PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, LONDON AND BECCLEi 



