CONTENTS. at 



NOVEMBER 1805. 



Engravings nf the following Objefts : 1. Magnified Reprefentations of Infers 

 found on Corn, by G. Cumberland, Efq ? 2. An improved Steam Engine, by 

 Mr. Clegg; 3. Simple Regifter Thermometers ; 4. The Framing employed to 

 raife the Roof of Clapham Church; 5. An improved and ceconomical Sheep 

 Fold, by T. Plowman, Efq. 6. Applicative Compafs, by Capt. Starck, R. N. 

 7.Se&ion of aJDrain, by J. C. Curwen, Efq. 



I. Facls and Obfervations relating to the Blight, and other Difeafes of Corn* 

 In a Letter from G. Cumberland, Efq. - - Page 145 



Jl. Experimental Investigations concerning Heat. By Benjamin Count of Rum- 

 ford, V. P. R. S. &c. - ' - - - - - 154 



III. Obfervations on blading Rocks; with an Account of an Improvement, 

 whereby the Danger of accidental Explofion is in a great Meafure obviated. 

 By Mr. William Clofe. From the Author. r - - Hi 



IV. D-efcripticn of a portable Steam-engine, invented by Mr. Samuel Clegg, 

 David-Street, Mancheller. Communicated by Mr. Dalton, Lecturer at the 

 Royal Inftitution, &c. _.---. 174 



V. Letter from Mr. J. C. Hornblower, defcribing the framed Work by which 

 the Roof of Clapham Church was railed to its original Situation, without 

 dilturbing the Interior of the Building, &rc. - 176 



VI. Experiments on draining Land. By John Chriftian Curwen, Efq. M. P. 

 of Workington-Hall, in Cumberland, with an Engraving. - 177 



VII. Remarks on a Letter of Mr. Dalton, concerning the Maximum Denfity 

 of Water; with an Account of two Experiments of D\. Hope, tending to 

 fhew that it takes Place at a Temperature above the freezing Point. In a 

 Letter from T. I. B. - - - - - 180 



VIII. Obfervations and Conjectures relative to the fuppofed Welch Indians in 

 the weftern Parts of North America. Republished from the " Kentucky 

 Palladium," with additional Remarks and Conjectures, by the Editor of the 

 Philadelphia Medical and Phyfical Journal. - - 181 



IX. Account of an improved Sheep-Fold, contrived and con ftru&ed by Thomas 

 Plowman, Efq. of Broom in Norfolk, and communicated by him to the So- 

 ciety ibr the Encouragement of Arts. - 192 



X. Anecdotes of an American Crow. By William Bartram. - 194 



XI. An Account of the Seiches of the Lake of Geneva. By M. Vaucher. 198 



XII. Experiments to, afcertain the beft Colour for marking the Heads of Pieces 

 of Cotton or Linen in the rough, which lhall be capable of refilling the Opera- 

 tions of Bleaching, as well as the moft complicated Proceffes of Calico Print- 

 ing, without lpreading beyond^the Limits of the Impreffion. By Mr. Hauff- 

 mann. - - - ' - - - - - 206 



XIII. Note on the Formation of Water by mere ComprcfTjon, with Reflections 

 on the Nature of the Electric Spark. By M. Biot. - - 21i? 



XIV. Account of Thermometers for regiftering the higheft and loweft Tem- 

 peratures in the Abfence of the Obferver. By F. A. - - 215 



XV. Abflrraft of a Memoir on Milk. By M. Thenard. - 218 

 Scientific News, 220. — Temperature of the Sea, ib. — Spent Oil of the Currier?, 



ib. — Note refpe&ing the Decompofition of Sulphate of Lead by the Muriatic- 

 Acid . By M. Defcotils, 221. — Extract of a Letter from Naples, dated Au- 

 guft 13, 222.— Applicative Compafs for taking Bearings on a Chart. By 

 W,.D, Starck, of the Roval Navy, 224. 



DECEMBER 



