398 



ANNUAL OF SCIENTIFIC DISCOVEEY. 



Ventilator, Foot's, 



Vessels, India-rubber lining for, 



use of zinc in construction of, 

 Vesuvius, eruption of, iu 1855, 

 Vices, improvements in, 

 Vision, binocular, 



PAGE 



61 

 31 



209 

 293 

 125 

 171 



Wagon, Wilson's improved, 



War inventions, recent improvements 



in, 



Washbum's furnace, 

 Water, decomposition of, by atmospheric 



electricity, 



Water-pipes, new construction of, 

 Waters, curious chemical changes 



served in certain, 

 Waves caused by earthquakes, 

 Wax, improvements in bleaching, 



78 



94 

 68 



Weaving, improvements in, 

 "Weights and measures, 

 Wells, frozen, of Owego, New York, 

 Whaling, bomb lances for, 

 Wheel-barrow, Wilson's improved, 



150 

 131 

 ob- 

 25T-8 

 297 

 246 

 79 

 89 

 190 

 92 

 123 



PAGE 



Willow, basket, machine for peeling, 116 

 Windlasses, improvements in the con- 

 struction of, 127 

 Windows, arrangement for washing, 129 

 Window-sash, new mode of hanging, 116 

 Wire, implement for cutting, 118 

 Woman, bear, the, 358 

 Wood, black stain for, 277 

 kindling, machine for preparing, 114 

 machines for working, 110 

 process for ornamenting, 129 

 sawing-machine, improved, 114 

 Woodpecker, curious habit of a Califor- 



ninn, 362 



Woods, ornamental, from Algeria, 136 



Wrench, self-adjusting screw, 125 



Wrenches, improvements in, 12J> 



Zinc, new process for engraving on, 187 



" roofs, 77 



" use of, in construction of vessels. 209 



Zodiacal light, 374 



