INDEX. 
Dynamices principi a ab Jac. Jurin , n. 479, p. 103. 
emtio, 1 bid* 
E. 
FJmrfojJile , or Elephas tin&ur’d, not the Turquoife,#, 482, 
P- 43 !• 
Ecchoes, of fome extraordinary 5 by Mr. Southwell, n. 480, 
A 2 ip. 
Echinites, a curious one by Mr. Baker, n. 482,7*. 432. 
of their perpendicular Afcent, by Mr. Arderon 9 and 
travelling from Pond to Pond, 482, p. 395. 
in Pafle viviparous, n. 478, 7*. 6J. 
Efts , Water-, of their flipping off their Skins, by Mr. 
Erskine Baker , #. 483, p . 529. 
Ehrbart (Balthafar) M. D. Remarks on M?ro crcjlacei 
ed altri cor pi, che fe trovano fa Monti, n. 479, p. 1 63 . 
EleClrical JExhtx, n. 484, p. 729, 732. 
— — Effluvia, of weighing their Strength, 0. 47 9 ? 7>.9<5, 
Experiments made at ». 484, p. 247. A 
Bird killed, /A p. 262. 
- Fire, by Dr. Miles, n . 478, p. 78. 
* Needle, an, n. 479, p. 99. 
* -Obf. by Dr. Miles . Spirit of Wine fir’d at 25 
Feet Diflance, n. 479, p. 160 . Gold and Silver Twift 
better than Thread, /A p . 161. 
Electricity Experiments by Mr. C A llam and, n . 478, 7*. 59. 
— Experiments by Dr. with black Sealing- 
wax and Brimftone,#. 478,7*. 27, 53. Of Water, ib.p. pi. 
* a Memoir by Mr. le Monnier, jun. n. 481,7). 290. 
— convey’d 2000 Toifes, /A 291. In the Balon 
in the Thtiilleries , ib . Its Velocity, /£. 7*. 294. Com- 
municated in Proportion to the Surfaces of Bodies, ib. 
P* 2 95 - 
1 — — Experiments and Obfervations by Wm . Watfon, 
n. 478, p. 41. ». 484, p.6%, p- 7®4- 
— has fome Properties in common with Magnetifm 
and Light, n. 478, p . 43. Kindles only inflammable 
Vapours, ib. p. 48. Of great Moment to the Syffem 
of the Univerfe, ib. p. 50. 
b EkCtricity 
