CONT ENTS 
. O F 
VOL. LXXI. Part I. 
L yf NATURAL Hijlory and Defcription of the Tyger- 
cat of the Cape of Good Hope.. By John Reinhold’ 
Forfter, LL.D. F. R. and A . S . page i 
II. Experiments and Ohfervations on the fpecific Gravities and 
attractive Powers of various f aline Subfances • By Richard 
Kirwan, Efq. F. R . & p. 6 
IIL Account of the violent Storm of Lightning at Eaft-bourn, 
in S u flex, Sept. 17, J780 ; communicated by Owen Salulbury 
Brereton, Efq . F. R. and A . S. ' p. 42 
IV. Account of the Harmattan, ^ fngular African Wind. 
By Matthew Dobfon, M. D. F. R. S.~; communicated by John 
Fothergill, M. D. F. R. S. p. 46 
V. EJfay on a new Method of applying the Screw.- By Mr „ 
William Hunter, Surgeon ; communicated by Lieutenant Ge- 
neral Melville, F. R. S. p. 58 
VI. An Account of the Turkey. By Thomas Pennant, Efq • 
F . R. S , ; communicated by Jofeph Banks, Efq. P. R. S. 
p.67 
VII. Account of a Nebula in Coma Berenices. By Edward 
Pigott, Efq.. In a Letter to Nevil Malkelvne, D. D. F. R. S. 
and AJhonomer Royal \ p. 82 
VIII.- 
