5 Use of Soapstone in diminishing Friction 455
7 On the Magnetic Effects of Metals in Motion 456
8 Duration of the Effects of Light upon the Eye 457
9 On the Measurement of the Intensity of Light _ib._
10 On the apparent Decomposition of White Light by a Reflecting Body when in Motion 458
12 Easy method of reducing Barometrical Observations to a Standard Temperature _ib._
14 Sapphire Lenses for Single Microscopes _ib._
15 On a Method of securing and Preserving the Rowing Pins in Boats 460
16 Cold Injection for Anatomical Preparation 461
1 Extraordinary Experiments on Heat and Steam 461
2 On the Use of feeble Electric Currents, for effecting the Combination of numerous Bodies 462
9 On a peculiar Nitric Acid, and Sulphate of Potash 467
11 On the Fluidity of Sulphur and Phosphorus at common temperatures 469
12 Separation of Selenium from Sulphur 470
13 On a new Compound of Selenium and Oxygen—Selenic Acid 471
15 Singular Habitude of Phosphoric Acid with Albumen 473
16 Economical Preparation of Deutoxide of Barium 474
17 Preparation of Aluminum—Chloride of Aluminum _ib._
18 Mutual Action of Lime and Litharge 475
19 New Chloride of Manganese discovered _ib._
22 Separation of Bismuth from Mercury by Potassium _ib._
23 Sulphuret of Arsenic proportionate in Composition to Arsenic Acid _ib._
25 Dobereiner’s finely divided Platina 477
27 Analysis of Porcelain Pottery, &c. _ib._
28 On the Composition of simple Alimentary Substances 480
29 Preparation of Sulphate of Quinia and Kinic Acid, without the use of Alcohol 482
33 On a New Acid existing in Iceland Moss 484
34 Remarks on the Preparation of M. Gautier’s Ferro-prussiate of Potash, as described in this Journal for July, 1827 _ib._
1 Squalls of Wind on the African Shores 486
3 Description of a Meteoric Fire-Ball seen at New Haven _ib._
5 Aurora Borealis seen in the Day-time at Cannonmills 489
7 On the Presence of Ammonia in Argillaceous Minerals _ib._
10 Direction of the Branches of Trees _ib._
12 Organization and Reproduction of the Trufle 491
13 Alteration of Corn in a subterraneous Repository 492
14 Quick Method of putting Insects to Death 493
15 Destruction of Snails by common Salt _ib._
17 Application of Remedies by Absorption from the Surface _ib._
18 On the Strix Cunicularia, or Coquimbo Owl 494