[ 62! ] 
Cofee gives no return till the third year after planting, and not a full crop till the fifth 
p. 358. By far the greateft part of fugar lands unfit for the culture of coifee ib. 
Copper , account of a new procefs for feparating filver from, p. 367. 
Corrofive fublimate ufed for the deftruftion of fugar ants in the Well Indies, p. 34 8. 
Crawford, Dr. Experiments and obfervations on the matter of cancer, and’ on’ the aerial 
fluids extricated from animal fubflances by diftillation and putrefaftion ; together with 
fome remarks on fulphureous hepatic air, p. 391. 
Da 
Da:t>y, Mr, Remarks on Major-General Roy’s Account of the Trigonometrical Opera- 
tion, p. 593. 
Dover Caftle, obfervations of the pole-liar made at, p. 116. Dover Caftle, although 
lofty, and fituated on a high chalk cliff, its northern turret being about 466 fret 
above low water at fpring tides, is furrounded on the land fide with eminences, at fix 
or feven miles dillance, frill higher than itfelf, p. 117. The latitude, longitude 
&c. of the northern turret of the Keep of Dover Caflle, p. 232. Determination of 
the refradlion between Dover Caftle and Folkftone Turnpike, p. 238. Refraaion on 
the dillance between Dover Caftle and Calais, p. 241. 
Dunkirk, its dillance north from the Royal Obfervatory at Paris determined, p. i8r. 
Its diftance ealt from the meridian of Paris determined, ib. Its longitude eaft from 
Greenwich determined, p. 221. Its latitude, p. 223. Its latitude, longitude, &c. 
p. 232. 
Duquefne , in Grenada, colonies of fugar ants obferved at, p. 346, 
E. 
Eclipfes, obfervations on, not to be depended upon for determining, with fufficient accu- 
racy, the difference of longitude in vicinal fituations, p. 230. 
Exofe. Report on the belt method of proportioning the excife upon fpirituous liquors, 
P‘3 21 * 
Experiments on the analyfis of heavy inflammable air, p. $ lm Experiments to determine 
in whatp.oportlon the dephlogifficated air is fufficient to famrate inflammable air, 
and what quantity of fixed air they produce when inflamed, p.*$8. Analytical expe- 
riments on a mineral from Sydney Cove in New South Wales, p. 307. Experiments 
fliewing rhe belt method of proportioning the excife upon fpirituous liquors, p. 321 — 
345. It a glafs ball be weighed in any fpirituous or watery fluid, the adhefion 
of the fluid will occafion (bine inaccuracy, and render the balance comparatively flug» 
gifh, p, 3 2 7 * Experiments and obfervations on the difTolution of metals in acids 9 
and their precipitations; with an account of a new compound acid menffruum, ufeful 
in fome technical operations of parting metals, p. 339. Experiments on the effe&s 
of compounding the vitriolic and nitrous acids, under various circumffances, upon 
the diffblution of metals, p, 360* Experiments on the reparation of filver from 
copper. 
