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Waste Products, by P. L. Sim Woods of Commerce, by P. L.
monds (Review).............. 254 Simmonds .................. 345

The Application of, by Worm of our Rivers, the Common
W. Crookes.........

Red..................

.................... 10
Water-Pipes, Soldering of Full .. ! Writing, Microscopic .......... 121

, Power, applied to Ma-
chinery .....................

YORKSHIRE, Botany of North.... 267
Welsh Gold .................. 123

Yorkshire Philosophical Society.. 90
West Kent Natural History and ZINO .................... 123, 572

Microscope Society .......... 536 Zoology at British Association,
"Will-o'-the-Wisp" ............ 110 Cambridge ..............
Wolfram, Action of, on Cast Iron 570 Zoology at Exbibition, by C. Col-
Wolfram, Effects of, on Steel .... 288 lingwood...................: 168
Wood, Preservation of.......... 529 Zoology, Summary.. 133, 297, 447, 579

... 144

243

COX AND WYMAN, PRINTERS, GREAT QUEEN STREET, LONDON.

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