Vol. 48. Philosophical Magazine. December 1816. 



Contents OF Number 224. 



^ LXXXI. On the Physiology of Vegetables 

 Agnes Ibbetbon. 



424. 



Pagt: 



By Mrs. , 



- 401 ' 



LXXXII. On tlie Origin of thevAtomic Theory. By 



William HiGGiNs, Esq. - - . . 4(jg* 



LXXXIII. An Account of tlie Discovery of a Mass of I 



\ Native Iror in Brasil. By A; F. Morn ay, Esq. in a Letter 



'to W. I-I. WoLLAs'TON, M.l). Sec. R.S, .- . 417 j 



f'-tfM ^'XXX-IV. Observations and Experiments on the.Mass 

 { m of Native Iron found in Brasil. Ev W. H. Wollastow, 

 ^>:;;f M.D. Sec. R.S. - . ' , . . 1 



I'll . ^^XXV. Remarks and Suggestions for further impror- 

 J§ '"S ^">a applying to Use, the Government Trjgono'r.ietiical 

 ^fM Survey of Great. Britain. By Mr. John Farey Sen. - 

 ;1^^ LXXXVI. Some Particulars connected vi'iih the late' 

 vi^^ Eitrthquake in Scotland. By Mr. Gavin Ikglis. . 4311 



M^'^ LXXXVII. Remarks on the Article " Strength of Ma- • 

 ^j^; terials," published in Dr. Rees's New Cyclopcedia, vol. xxiiv. 

 ^^s'''^ part i. By A CoRa£SPONDENT. - - • . . -1 



gi^ LXXXVin. On the Veniilati*^ of Coal Mines, < - -i 

 " LX;KX1X. On the late Solar Eclipse. '- -,.^^ 



XC. On th-^ late Sclwr Eclipse. By E. V/alkss "^sq. 4 

 XCI. inquiries into the Laws of Dilatation of , lids, 

 ^iquijs, and elastic Fk'i'jsj and on the exact Measui .ent j 



of Temperatures. By Messrs. DuLONG and Petit. ead 

 to tlxe Institute '29th May 1 81 6.' - - . u - 442. 



"XCII. New Theorems applicable to the Value o>An- • j 

 liltiitics. -■ ;.. - - - . . 449* 



XCIII. On Safety-latops, and the Barrier formed by ^ ; 

 Wire-gauzeagainst tlie Passage of Flame. By J. Murray, ' 

 Esq. ....... 451 



XCIV. Notices respecting New Books ... 4551 

 XCV. Proceedings of Learned Societies. . - ^57 ' 



XCVI. Intelligence and Miscelkmeous "Articlej. — 

 ' Meteorological Tables.— Indexi &c. . . 460-476; 





TO CORRESPONDENTS. 



Mr. KsriGHT on tne Safe-lamp, and Phjlalethes on the same Sub- 

 ject, wil appe;>r in our next. 

 Mr. Horn oh yision, shall liave p place as soon as room can be 

 • found for hh diagrani hi one of our plates. 

 ■^■<»)tr *^''* ^^^'^" o* '■^*' ii-itctric Cohimn with the Thermometer, Barometer, 

 Ni^^ and Ilyj^rometcr, in cue Instrument, will also nppcar Soon. 

 ,V%V?Ji Mr. Flayeu's Paper on Stoves, Ovens, and Steam Apparatus, is un- 

 '^^' der consideration. 



F. on Barometric Pressure shall have a place. 

 Z.> Medirnl Premium of I'ifxy Guineas r<;ached us too Jate for, this 

 Number of our Workr . ' ,''^ [ ■ ^. • . •>•'.'' ' 



%* Communications' for this Work,' addressed to the Editor, 

 ^•<:kett- Place, Temple Bar, w'ill meet with every attention. 



