'* ■ r „ rnFl of a Letter from J. Franklin, Efq. relative to a 
^ 'luminous Arch. Communicated by Sir Joieph Banks, M 
c. taz g 
Jr?£l 1 
the Noth of Ireland and Wefiern ljfands of Scotland In 
Zo Lettersfrom Abraham Mills, Efq. to John Lloyd, EJ* 
F n f)t Height of the luminous Arch which was feen on Feb. 
Cavendilh, 2§fr F. A S.andA.S. 
XI. Obfervations on Refpiration. By the Rev. Jofeph I 
w L £'I‘comt S of the Trigonometrical Operation , whereby the 
• Lf/ZlZ * * YfX:fZ r f, 
Greenwich and Paris ha, lieu ieurmmi. By Major ge « > _ 
• William Roy, F. F. S. «»« ^ 
O N T E N T S. 
A 
P P E N D X X. 
Meteorological journal left a, the Apartment, of the Royal So- 
■ M ty Order of tie Preftdent and CaumtU 
PHI- 
