182 INDEX. 



Shepherds of the Landes, account of, ii. 253 



Shetland Isles, remarks on the chart of, xii. 206 



Shillibeer (Mr.), suggestion of, for preventing the dry rot, 



V. 122 

 Ship, supposed, buried in the earth, discovered in Africa, 



V. 150 "^ 



Ship*s-way, account of a new machine for measuring, ii. 90 

 Ships (merchant), new principle of constructing, x. 393. Dry 



rot prevented in, by means of salt, 448 



— account of a new adhesive lining for the sheathing- of, 

 xii. 168 



■ of war, advantages of Sir R. Seppings's curvilinear form in 

 the construction of the sterns of, xiv. 325 



" having square and curvilinear sterns, results of experi- 



ments relating to the comparative means of defence afforded 

 by, xviii. 201 



— observations on the distribution and changes of the mag- 

 netic intensity in, xvii. 261. xix. 333. Improvements in the 

 construction of, 335 



the copper sheathing of, how prevented from becoming cor- 

 roded by the action of sea- water, xvii. 253 



Shipwrecked persons, experiments for preserving, vi. 135 



Shooting-stars, seen in the day-time, on the nature of, xx. 1G8 



Siberia, account of the mammoth or fossil elephant discovered in, 

 viii. 95 



chemical analyses of various copper ores from, xi. 276 



Sicily, meteorological remarks on the volcanoes of, xiv. 322 



Siderographic engraving, process of, described, ix, 125 



Sierra Leone, journal of the weather at, vi. 301 



Silica fusible by the blow-pipe, ii. 110. Experiments and ob- 

 servations on the combinations of, in cast iron, 285 



• • geological account of, and its uses, xix. 80 



Silicium, process for procuring, xviii. 156 



SiLLiMAN (Professor), fusion of charcoal, plumbago, and anthra* 

 cite, by, xvi. 157 



Silures, See Ohio. 



