, ( 290 ) 



into 4, .3 ur 2 tquare numbers, ihc algebraic eura of whose roots 

 (positivo or ncpUive) may ci|ual 1, by mcans of whicli tablü all tlic 

 odd numbers up to 9503 may bc resolved into not exceccling 4 square 

 numbeis. 

 j. p. JOüLii and w. THOMSON. On the theiraal effects of fluids iii 

 raotion. p. ü. 



Proceedings of the Royal Society. Vol. VI, N^ 100—102. 



Vol. VII, N^ 3. 4, 9, 10. 8^ 

 Address of the right honourable President, delivered at 



the anniversary meeting. November 1854. 8^. 

 List of the Members of the Royal Society 1854. 4"*. 

 De ontbrekende Deelen van de Transactions of the Royal 



Society of Edinburgh, Vol. I— III, XIl 1788—1794, 



1824. 4% en Proceedings N". 2, 3, 9, 10, II, 12, !«. 



1833—1840. 8^ 



Transactions of the Royal Society of Edinburgh. Vol. XXT, 

 p. 1. 1S53— 1854. 4^ 



Contents. 



j. DAVY. On Ihe Impregnation of the ova of the Salmonidae. 



T. s. TRAiLL. On the Torbauehill mïneral. 



A coNNEi.L On a new Hygrometer or dew point instrument. 



II. How. On ihc action of the Halogen compounds of Ethyl and Amyl 



on bome vegetable aikaloids. 

 j. F. BROWN. On a gcucral method of substituting Jodine for bydro- 



gen in organic compounds, and on the proporties of Jodopyrorac- 



conic acid. 

 w. THOMSON, Noto OD ths possible density of the luminiferous medium, 



and on the mechanical value of a cubic raÜe of sunlight. 



— __ Ou the mechanical energies of the solar system. 



j. F. MiLLEE. Ou the meteorology of the Eaglish lake district, inclu- 



ding the results of experlments on the fall of rain, the temperaiure, 



The dew point, and the humidiiy of the atmospliere, at various 



heighta on the mountains, up to 3166 feet above the sea level, for 



the years 1851—1853. 

 w. THOMSON. On the dynaraical theory of heat. Thermo-electric cur- 



rents. 

 j. H. BENNETT. Ao investigatiou into tlie structurc of the Torbanehili 



mineral and of various kinds of coal. 

 j. H. BALFOUR. Ou certfliu vegetable organisnis found in coal frnm 



ford el. 



