Philq/bphical Newst ^c. 473 



■which has the property of abforbin^ an excefs of oxide ; for the fulphate and nitrate, and 

 perhaps others alfo, poffefs it. The proof of this may be had by decompofing the nitrate 

 and the fulphate of lead by the cauflic alicalies j and particularly by ammoniac. There 

 will conftantly remain a fmall quantity of th«fe acids in the oxide of lead, which will 

 become vifible the firfl by the nitrous vapours wiiich are difengaged by heating the wafhed 

 precipitate ; and the fecond by the refidue left by the nitric acid, with the precipitate 

 obtained from fulphate of lead, which refidue is fulphate of lead. The decompofition of 

 the muriate of foda is probably efledled by the fame means. I propofe to examine this 

 queftion fpeedily, and (hall give an account of my operations to the clafs. 



PHILOSOPHICAL NEWS, ACCOUNTS OF BOOKS, Sfc. 



Philofophical TranfaBiom of the Royal Society of London, for the Year 1799. 

 Part II. London, Elmsl y. 



A 



lo- ./jlN Account of the Difleftion of an Hermaphrodite Dog. To which are prefixed 

 fome Obfervations on Hermaphrodites in general. By Everard Home, Efq. F. R. S. — 1 1. An 

 Enquiry concerning the Weight afcribed to Heat. By Benjamin, Count of Rumford, 

 F. R. S. M. R. I. A. Sec. &c.— 12. An Account pf fome Experiments on the Fecundatioa 

 of Vegetables. By Thomas Andrew Knight, Efq.— 1 3. Obfervations on the different Spe- 

 cies of Afiatic Elephants, and their Mod£ of Dentition. By J. Corfe, Efq. — 14. Some Ob- 

 fervations on the Stru£ture of the Teeth of Graminivorous Quadrupedes ; particularly thofe 

 of the Elephant and Sus ^thiopicus. By Everard Home, Efq. F- R. S. — 15. Experiments 

 to determine the Quantity of tanning principle and gallic Acid contained in the Bark of va- 

 rious Trees. By George Biggin, Efq.— 16. Eflayon the Refolutlon of Algebraic Equations ; 

 attempting to diftinguifli particularly the real principle of every method, and the true 

 caufes of the limitations to which it is fubjeft. By Giffon Wilfon, Efq. — 17. On different 

 Sorts of Lime ufed in Agriculture. By Smithfon Tennant, Efq. F. R. S.— 18. Experiments 

 and Obfervations on Shell and Bone. By Charles Hatchett, Efq. F. R. S. — 19. A Catalogue 

 of Oriental Manufcripts, prefented to the Royal Society. By Sir "William and Lady Jones. 

 Prefents received by the Royal Society, from November 1798 to June 1799. Index. 



Pro/peHus or Index to Lord Dundonald's intended Publication. Single Sheet, Oitavo; prefented 

 to his Friends and Men of Science, by his Lordlhip, but not (as I fuppofe) fold. 

 In this pamphlet the Earl of Dundonald announces that he intends foon to publifh a de- 

 tailed account of all his difcoveries, proceffcs, and patents, and of the circumftances which 

 have hitherto prevented their becoming beneficial either to himfelf or the public. He 

 complains of the moft cruel and oppreffive ufage from individuals, and negle£ts on the part 

 of the government, and ftates that he has not yet determined whether he will furrender or 

 4 H 



