vi CONTENTS. 
XV. On the — Region, Topography, &c. of part of the ie 
y Mountains; by Samuen Wytiys Pomeroy, Esq. 342 
egha 
XVI. On the Uri at fixing Rigninics Conductors in sens 
s, Esq 
y W.S. Har 
XVII. The Secloptéat, an ‘of Reptiles; by Gineos Manet, 
Esq. F.R.S. &c. &e. 359 
MISCELLANIES—FOREIGN AND DOMESTIC. 
CHEMISTRY. 
5. Manganese ; mode of Se the commercial value of 
its ores 
2, 3. Iodine and bromine in mineral waters—Illumination of 
light house 
4, Original Seastehorliton ea potas ah, 
5, 6. Decomposition of water by a sinieksheric aud by cs common 
a the state of oe mess ic in so- 
7, 8. Pier chioride of silver—Whewells witilen nomen- 
clature for chemical com 
9, 10. Preservation of blood—Presence “of manganese in the 
11,:12. On the expansion of bisinatli and “its alloys ddring  conge- 
ation—-Bismuth, tin and lead, 
13, 14, _ Crystals of oxalate of lime in splants—2T\ rustore the 
sticity of a damaged oe the = _ — 
aad silver in the Russian empir - 
16. British association for the sicmelipn of scienc 
17, 18. Conducting powers of liquid satek-a Power of carbo to 
estroy the bitterness of certain bodies 
19, 20. ee of an alloy of tin and lead—Vauquelin’ $ pro- 
ss for obtaining metallic chromium 
21. On ‘the acidification of iodine by means of. nitric acid, - 
MECHANICAL PHILOSOPHY. 
1, Influence of = in Sean testi ee 
and color, 
2,3. Difference in brillaney of the Lae pit ana secondary rain- 
bow—On the discharge of a jet of water under water 
4, 5. On the eeeee of a Jet of water in ens 
experiment, 
6, 7. An acoustic rainbow —Cenipesietv of fluids, 
8, 9. yi aa between the metre and English yard—Dip of 
he magnetic needle at St. Petersburgh, 
NATURAL HISTORY. 
On habits of cleanliness in birds, - - - - ~ 
364 
370 
375 
376 
379 
382 
