Monday, IQth January 1854. 



PAGE 



What is Coal? By Dr Fleming, . . .216 



Monday, Qth February 1854. 



Observations on the Structure of the Torbanehill Mineral, as 



compared with various kinds of Coal. By Prof. Bennett, 217 



Monday, 20th February 1854. 



On certain Vegetable Organisms found in Coal from Fordel. 



By Professor Balfour, . . . .218 



Monday, 6th March 1854. 



On the Impregnation of the Ova of the Salmonidae. By John 

 Davy, M.D., F.R.SS. Lond. & Edin., Inspector-General of 

 Army Hospitals, . . . . .219 



Account of a remarkable Meteor seen on 30th September 1853. 



By William Swan, Esq., .... 220 



On the Mechanical Action of Heat. By W. J. ^^Iacquorn 



Rankine, C.E., F.R.SS. Lond. & Edin., &c. . . 223 



Donations to the Library, . , . .224 



Monday, 20th 3Iarch 1854. 

 On the Total Invisibility of Red to certain Colour-Blind Eyes. 



By Dr George Wilson, . . . . 22Q 



Donations to the Library, . . . .227 



Monday, 3d April 1854. 



On a New Hygrometer, or Dew-Point Instrument. By Pro- 

 fessor Connell, ..... 228 



On the Stability of the Instruments of the Royal Observatory. 



By Professor Piazzi Smyth, .... 229 



Ot) a General Method of effecting the substitution of Iodine for 

 Hydrogen in Organic Compounds, and on the properties of 

 lodo-Pyromeconic Acid. By Mr James Brown, Assistant ^ 

 to Thomas Anderson, ...... 235 



Donations to the Library, ...... 236 



For continuation of Contents, s^e page 3 of Cover. 



