388 



CATAtOGUE. — HEAT, EXPANSION. 



piece, that in mercury the inequality cannot be very 

 great. 



Deluc on expansions. Roz. XLTII. 422. 



Fan Smndtn sur la comparaison d<js ther- 

 niometres. Amst. 1778. 

 Compares 72 scales. Thermometer for a maximum. 



Van Swinden on Du Crest's universal ther- 

 mometer. Roz. XIII. Suppl. 402. 



Shuckburgh. Ph. tr. 1779. 



Cavallo on the expansion of mercury. Ph. tr. 

 1781.511. 



Luz liber die thermometer. 8. Niiremb. 

 1781. R.I. 



Wedgwood's thermometer for high degrees 

 of heat. Ph.tr. 1782. 305. 1784. 359- 

 1786. 390. Journ. Phys. XXX. 299- Re- 

 pert. VI. Q35. ' 



■ By measuring the contraction of pieces of clay exposed 

 to the heat. It was connected w ith the common thermo- 

 meters by measuring the expansion of a piece of silver in a 

 gage of earthenware. Found the melting of ice of no use 

 as a test, from the porosity of the ice, and the continuation 

 of the operation of freezing at the same time. Conjectures 

 that vapour freezes at a higher temperature than water. 

 There seem to be many difficulties in being assured of the 

 proper quality of the clay. 



Thermometers. E. M. A. VIII.. Art. Ther- 



mometre. 

 Pyrometer. E. M. PI. III. Horlogerie, pi. 



50. 

 Thermometers used by Hutchins. Ph. tr. 



1783. 303*. 



Zunotti on the effect of immersion on ther- 

 mometers. C. Bon. VI. O. 83. 

 Achard on the expansion of fluids. A. Berl. 



1784. 3. 



On a great variety of fluids and solutions. He seems to 

 neglect the expansion of glass. 



Achard's thermometer is of semitransparent porcelain, 

 filled with a composition of 2 parts bismuth, } lead, and 1 

 tin, which melts at the heat of boiling water. 



Kirwan on specific gravities, talien at dif- 

 ferent degrees of heat. Pit. tr. 1785. 267. 



Hindenburg Formulae comparandis thermo- 

 metri.s idoneae. 4. Leipz. 



Rosenthal Meteorologische werkzeuge. I. 



38. 

 Charles on the effect of the expansion of 



glass. A. P. 1787. 567. 



Langsdorf Theorie der hydrodjmamischen 

 iind pyrometrischen grundlehren. 



Blagden. Ph. tr. 1788. 



The maximum of density of strong brine, like that of 



water, is about s" above its freezing point, 



Gaussen sur le thermometre de Reaumur. 8, 

 Bezieres, 1789. Roz. XXXVII. 186. 



Gaussen on the expansions of mercury and 

 alcohol. M. Laus. Ill, 364. 



Compares Micheli's atid Deluc's experiments, and finds 

 that they agree. 



Morveau on the expansion of air. Ann. Ch.- 



I. 256. 

 Guy ton on Wedgwood's thermometer. Ann. 



Ch. XXXI. 171. 

 Guyton's metalline theniiometer of platina. 



Repert. ii. III. 458. Nich. VI. 89- 

 Cotte on thermometers of mercury and of 



alcohol. Roz. XXXVII. 189. Ph. M. VI. 



250. 

 Ph. tr. 1792. 270. 



T. Wedgwood proposes to measure heat by fir^ding the 

 loss of weight of hot water into which the heated substance 

 has been dropped. 



Sanmartini's wheel thermometer. Soc. Ital. 



VI. 71.- 

 Casbois on expansion in barometers., Roz. 



XLII. 441. 

 Lemaistre on Six's thermometer. Journ. 



Phys. XLVIl. (IV.) 150. 

 Enc. Br. Art. Thermometer. 

 Gilpin's tables of specific gravities. Ph. tr. 



1794. 275. 

 Prony on the expansions of gases and vapours. 



Journ. Poh 1. 1, ii. 24. Formulas. 



