1874.] 
Winstow, L. S., ‘“ Manual of Lu- 
nacy ” (review), 250 
Woop, Mr., utilising blast-furnace 
slag, 264 
Woopward, C. J., improved forms of 
gas generator, 139 
— H., Paleontology, 371 
Working coal-cutting machinery in 
mines, 11g 
‘*Workshop Appliances” (review), 
10g 
INDEX. 
559 
WricGuHTson, T., new form of wagon 
drop for blast-furnaces, 543 
WirzBurRGER, P., Geology of West 
Coast iron districts, 537 
EAR-BOOK of Faéts in Science 
and Art” (review), 403 
Y fasaaurion sn M., description 
of syngenite, 266 
LIST OF PLATES AND WOODCUTS IN VOLUME IV. (N.S.) 
Optical Phenomena of the Atmosphere . 
New Freezing Microtome (2 figures) 
Spectrum of Feathers of the ‘‘ Plantain Eaters 2 
Fluorescent and Absorption Spectra of the Uranium Salts (9 figures) 
Vessel for Extraction of Sulphur 
Improved Forms of Gas Generator (2 figures) . 
The Native Copper of Lake Superior 
Deep Sea Thermometer . 
The Pole Star and the Pointers (6 figures) 
Peat Bogs 
The Iowa and Illinois Tornado (24 figures) 
Loss of Life at Sea (3 figures). 
Curved Appearance of Comets’ Tails 
PAGE 
: : - c C 3 37 
: : ; EZO 
132 
135 
139 
140 
I4t 
277 
287 
2098 
339 
5 : : ‘ 7 465 
‘ : “ ~ |) 508 
ERRATA. 
Page 378, line 1, read ‘motions of the upper currents and of the heavy 
masses.”’ 
Page 383, line 17 from bottom, read “It was at this point within 1} miles 
of Iowa River, the course of which is here nearly parallel with that of the 
tornado. The crookedness,” &c. 
Page 394, line 13, for ‘Smithsonian Institute of Weseaw and Illinois,” read 
‘* Smithsonian Institute, Warsaw, Illinois.” 
