580 Notices respecting New Books. 



Sea-rates of Chronometers, arising from the Magnetism of 

 their Balances; with Suggestions for removing this Source 

 of Error ; by Wm. Scoresby, junior, Esq.. — Report on a 

 Communication from Dr. Dyce of Aberdeen, to the Royal 

 Society of Edinburgh, on " Uterine Irritation, and its Effects 

 on the Female Constitution ;" by H.Dewar, M.D. — Descrip- 

 tion of some Indian Idols in the Musevun of the Society ; by 

 W. A. Cadell, Esq. — Observations on the Formation of the 

 Chalk Strata, and on the Structure of the Belemnite ; by 

 Thomas Allan, Esq. — On a Submarine Forest in the Frith 

 of Tay, with Observations on the Formation of Submarine 

 Forests in general ; by John Fleming, D.D. — Description of 

 a Monochromatic Lamp for Microscopical Purposes, &c., with 

 Remarks on the Absorption of the Prismatic Rays by coloured 

 Media; by David Brewster, LL.D. — On the Absorption of 

 Light by coloured Media, and on the Colours of the Prismatic 

 Spectrum exhibited by certain Flames ; with an Account of a 

 ready INIode of determining the absolute dispersive Power of 

 any Medium, by direct Experiment ; by J. F. W. Herschel, 

 Esq. In a Letter to Dr. Brewster. — On the Mineralogy of 

 the Faroe Islands ; by W. C. Trevelyan, Esq. — Electro- 

 Magnetic Experiments and Observations ; by Thos. Stewart 

 Traill, M.D. and W. Scoresby, jun., Esq. — Conjectures on the 

 Analogy observed in the Formation of some of the Tenses 

 of the Greek Verb ; by John Hunter, LL.D. — Histoiy of the 

 Society. — Laws of the Society. — List of the Office-bearers, 

 Members, and Donations. 



Recently publiskcd. 



Memoirs of a Captivity among the Indians of North America; 

 by John D. Hunter. 8vo. 12^. 



A Dictionary of Chemistry, Mineralogy, and Geology ; by 

 James Mitchell, M.A. F.A.S. 18mo. 1 o/. 6f/. boards. 12s. 6c/. 

 calf gilt, forming Vol. II. of the Methodical Cyclopaedia. 



A Treatise on Dynamics ; by William Whewell, M.A. 8vo. 

 105. 6d. 



The Elements of Pharmacy, and the Chemical History of 

 the Materia Medica; by S.F. Gray. 8vo. 105. 6(1. 



The Elements of the Theory and Practice of Physic ; by 

 George Gregory, M.D. Part II. 105.6^. 



Philosophical Recreations. Vol.11.; by John Badcock, 

 18mo. 35. 



Religiosa Philosophia, or a New Theory of the Earth ; by 

 W. Welch. 8vo. 7s. 6d. 



Narrative of a Journey from the Shores of Hudson's Bay to 

 the Mouth of the Copper Mine River, &c. ; by Captain John 

 Franklin, R. N. 4to. 4/. 4-4-. 



