[ 468 ] 

 LXXXIII. Notices respecting New Books, 



-t HiLosoPHiCAL Transactions, Part I. for 1815, has made vt* 

 appearance, and the following are its contents: 



I . Additional Observations on the optical Properties and Struc- 

 ture of heated Glass and unannealed Glass Drops. By Da\'id 

 Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin. In a Letter 

 addressed to the Right Hon. Sir Joseph Banks, Bart. K.B.P.R.S. 

 — II. Description of a new Instrument for performing mechani- 

 cally the Involution and Evolution of Numbers. By Peter M. 

 Roget, M.D. Communicated by William Hyde Wollaston, M.D. 

 Sec. R.S. — III. Experiments on the Depolarization of Light as 

 exhibited by various Mineral, Animal, and Vegetable Bodies, with 

 a Reference of the Phaenomena to the general Principles of Po- 

 larization. By David Brewster, LL.D. F.R.S. Edin. and F.S.A. 

 Edin. In a Letter addressed to the Right Hon. Sir Joseph 

 Banks, Bart. K.B. P.R.S. — IV. On an ebbing and flowing Stream 

 discovered by boring in the Harbour of Bridlington. By John 

 Storer, M.D. Communicated by the Right Hon. Sir Joseph 

 Banks, Bart. K.B, P.^R.S.— V. On the Effects of simple Pressure 

 in producing that Species of Crystallization which forms two 

 oppositely polarized Images, and exhibits the complementary 

 Colours by polarized Light. By David Brewster, LL.D. F.R.S. 

 ' Edin. and F.S.A. Edin. In a Letter addressed to the Right 

 Hon. Sir Joseph Banks, Bart. K.B. P.R.S. — VI. Experiments 

 made with a View to ascertain the Principle on which the Action 

 of the Heart depends, and the Relation which subsists between 

 that Organ and the Nervous System. By A. P. Wilson Philip, 

 Physician in Worcester. Communicated by Andrew Knight, Esq. 

 F.R.S. — VII. Experiments to ascertain the Influence of the 

 Spinal Marrow on the Action of the Heart in Fishes. By Mr. 

 William Clift. Communicated by Sir Everard Home, Bart. 

 V.P. R.S. — VIII. Some Experiments and Observations on the 

 Colours used in Painting by the Ancients. By Sir Humphry 

 Davy, LL.D. F.R.S.~IX. On the Laws which regulate the Po- 

 larization of Light by Reflexion from transparent Bodies. Bv 

 David Brewster, LL.D. F.R.S. Edin. and F.S.A. Edin. In a 

 Letter addressed to the Right Hon. Sir Joseph Banks, Bart. K.B. 

 P.R.S. 



Mr. Robertson Buchanan has published a new and extended 

 edition of his valuable treatise " On the Economy of Fuel and 

 Management of Heat, especially as it relates to heating and 

 drying by means of Steam." 



LXXXIV. Pro- 



