592 
POPULAE SCIENCE REVIEW. 
Waste Products, by P. L. Sim- 
monds (Review) 254 
„ The Application of, by 
W. Crookes 58 
Water-Pipes, Soldering of Full . . 409 
,, Power, applied to Ma- 
chinery 144 
Welsh Gold 123 
West Kent Natural History and 
Microscope Society 536 
“ Will-o’-the-Wisp” 110 
Wolfram, Action of, on Cast Iron 570 
Wolfram, Effects of, on Steel .... 288 
Wood, Preservation of. 529 
Woods of Commerce, by P. L. 
Simmonds 345 
Worm of our Rivers, the Common 
Red 10 
Writing, Microscopic 121 
Yorkshire, Botany of North. . . . 267 
Yorkshire Philosophical Society.. 90 
Zinc 123, 572 
Zoology at British Association, 
Cambridge 243 
Zoology at Exhibition, by C. Col- 
lin gwood 168 
Zoology, Summary.. 133, 297, 447, 579 
COX AND WYMAN, PRINTERS, GREAT QUEEN STREET, LONDON. 
