_ Jone 1819. 
Published Wd Last Dily oF of every Month, 
| [PRICE %. 68] 
~THE 
\ PHILOSOPHTICA L MAGA ZIN E. 
- AND JOURNAL: 
; ‘COMPREHENDING 
THE VARIOUS BRANCHES OF SCIENCE, 
THR LIBERAL AND FINE ARES: 
GEOLOGY, 
| AGRICULTURE, 
‘MANUFACTURES: AND COMMERCE. 
Se 
NUMBER CCLIV. 
For, A LEN ES YBI9 KR 
; “with AN ENGRAVING DY PORTER, i 
Iastrative of Dr. Ouinruus Grecory’s Paper on the different Re \ 
- Rates of Peawineton’s Astronomical_ ech at the Island of #8! 
 Balta, aid at Woclwich Conzmon. fics i 
- BY. ALEXANDER TILLOGH, 
/ OMR.T.AsM.G.S. M/R.AS. MUNICH, F.5.,A. EDJN. AND PERTH, &e: 
LONDON: 
~ pRiNteED BY RICHARD AND ARTHUR TAYLOR; SHOE-LANE : 
ws sold by Capzxrt and Davies; Loneman, Hurst, Ree 85 te { 
* Orme; & Brown; Hicaver ; Sitzrwoop and Co.; Harvine; NG 
3 > Unperwoop; Simpeinand Massuabis London; Consrauue® x 
y “and Co. Edinburgh: Baasu and Rin Dunean; and Pen-~ AAS 
ie 2 MAN, ‘Glasgow: and Girsert aug istesipen Dublin, ' 
Cae ed 
