1 ro 73 1 
W fhew the advantage of elevated pointed condu&Grs, p. 823. See EleSIncity . Re- 
marks on Mr. Wilfon’s experiments on the nature and ufe of condu&ors, p. 855- — 
860. 
Ccndufiars, New experiments on the Leyden phial, refpeaing the termination of con- 
ductors, p. 999. Obfervations on. Mr. Henly’s experiments to fhew that pointed 
terminations are preferable to fpherical ones, p. 999> I00 °* ® ne °f Mr. Llenly s 
experiments contradifted by an experiment, P . 1000. Defcription of a forked appa- 
ratus for determining the fa£t upon which the difference feemed to depend, p. icoi 
— 1003. Farther experiments contradicting Mr. Henly’s, p. 1003 — 101 1. Refult 
of the experiments at Dr. Lindas, p. 1007. Of thofe at Dr. Higginses with the 
forked apparatus, p. 100S. Of fome after Mr. Henly’s manner, p. 1009. And of 
fome at Mr. Partington’s, p, 1010, ion. An account of Mr. Cavalio’s method of 
repairing broken Le°yden phials, fo as to make them again ufefui for experiments, 
p. ion, 1012. 
Contraaion . A cure of a mufcular contraction by eleCtricity, p. 97 — ior. 
Cucumbers , faked ones, how prepared in Ruffia, p. 632. 
Cylinders, eledrical, the moll eafy and effedual method of cleaning them, p. 861, 862. - 
D. 
Va/rymple, Alexander, efq. his journal of a voyage to the Eaft Indies in the year 177ft 
p. 389 — 416. See Tables. 
Darrin, Dr. Erafmus, his account of a new cafe in fquinting, p. 86. See Squinting . 
Davis's Streights. Track of the fhip Lion from England to Davis’s Streights and La- 
brador, with obfervations for determining the longitude by fun and moon, and 
error of common reckoning ; alfo the variation of the compafs, and dip of the 
needle, obferved during the voyage in 1776, p. 1037. See Lion. 
Deaths. . The proportion of deaths in Chefter in the year 1774, p. 143. Deaths there, 
p. 147 — 130. Deaths thereby the fmall-pox in the fame year, p. i£o, 15 1. 
Debra w. A letter from Nathaniel Polhill, efq. on Mr. Debraw’s improvements in the 
culture of bees, p. 107 — no. 
Dee , the river, fome account of it, p. 133.^ 
Dt Luc , Mr. John Andrew, his eflay on pyrometry and areometry, and on phyfical 
meafures in general, p, 419. See Pyrometry and Areometry. 
De Mertans , Dr. Charles, his obfervations on the feurvy, p. 661. See Scurvy. 
Denjity . An account of the calculations made from the furvey and meafures taken. 
Scheh allien, in. order to ascertain the mean aenfity of the earth, p. 689. See 
Earth . 
Dei Cartes. Obfervations on the limits of algebraical equations;- and a general de- 
monftration of Ees Cartes’s rule for finding their number of affirmative and negative 
toots* p. 38c — 388. 
Di$f * < v 
