Vol. 



Philosophical Magazine. 



Srpt. 18'21 



- 183 



IS-; 



]8^i 



Contents of Number 281. 



XXXVJI. On the new Method proposed by Dr, Y.oun': 

 I for calculating the Atmospherical Refraction. By James 

 Ivory, MA. F.R.S. P.ge 



XXXVIII. On the aeriform Compounds of Charcoal and 

 Hydrogen; with an Account of some addixional Experi- 

 ments (in the Gases frotn Oil and from Coal. By William 

 Hehry, M.D. F U.S. .... . . 



XXXIX. On Mr. Caicnot's new System of Defence of 

 Places by what he calls Vertical Firing. ... 



XL. On a new graphical Method of Reducing the Lu- 

 nar Distances. By Mr. H-f.nry Meikle. ... 



XLI. On Shooting Stars, and Meteors which throw 

 I down Meteorolitss, as distinguished irom fiery Appear- 

 ances low in the Atmosphere, which have been supposed to 

 proceed from terrestrial Exhalations, and to prognosticate 

 Wind and Rain, &c. ; with Directions for observing Shoot 

 ing Stars. By Mr. JohnFarey, sen. 



XLII. An Address to a Phrenologist. By A Corre- 

 spondent. ........ 



XLIII. Tables of the Longitude and Altitude of the No- 

 nagesimal Degree of ihe Ecliptic. By Mr. Jas. Utting. 



XLIV. True apparent Right Ascension of Dr. Maske- 



lyne's S6 Stars for every Day in the Year 182L By the 



iRev. J. Grooby. , ---..-. 



XLV. On the Appearance of Meteors, Parhelia, and Pa- 

 raselene, as Prognostics in general of Wind and Rain. By 

 Dr. W. BuRNEY - .-...-'. 



XLVI. OnMr.RiDDLE'sClaim tothe Invention of anew 

 ["Method of determining the Latitude. By Mr. H. ATKfNsos. 



XLVII. On Mr. Perkins's Conclusions with regarti to 

 the Compressibility of Water, drawn from the Results of 

 empty Bottles sunk to different Depths in the Ocean. By 

 Mr. JoHK Deuchar, M.W.S., Lecturer'on Chemistry and 

 I on Materia Medica and Pharmacy \xi Edinburgh 



XLVI 1 1. New Determination of the Proportions of the 

 Constituents of Water ; and the Density of certain Elastic 

 Fluids. By MM. Berzeliuj and Dulong. 



XLIX. Notices respecting New Books. . - . - 



L. Proceedings of Learned Societies. 



LI. Intelligence and Miscellaneous Articles : — Statue to 

 'the Memory of the late Sir .Joseph Banks— New Expedition 

 to Africa — Disappearance of a Mountain — Observatory at 

 Abo — New Shetland — tarthqnake — Phseiiomcnon in the 

 Tides — Bqtany — Vaccination— Volcano In the Isle of Bour- 

 j bon — Egypt— Questions addressed to Naturalists — Antique 

 Glass— Vestiges revived — The Chameleon — Maturation of 

 Fruits— Patent Fire Shield— Picture Writing, &c. 217—240 



195, 



200 



203 



2091 



217' 



JllCHARO AMD ARTHUR TAYLOR, TRINTERS, SHOS LANK, LOimOX; 



