462 Scientific Intelligence, [June/ 



vitreous quartzose aspect, and an olive-green colour, approach- 

 ing that of some varieties of pitchstone ; the sand contains frao*- 

 ments of shells and corallines in considerable quantity. 



We defer a further account of the proceedings of this Society- 

 till the appearance of a new Part of their Transactions, which is 

 now in the press, and will be published within a few weeks. 

 This part will contain, in addition to the papers of which an 

 account has been already given in this jouriKil, a memoir, '' On 

 the Excavation of Valleys by diluvian Action, as illustrated by a 

 Succession of Valleys which intersect the South Coast of Dorset 

 and Devon," with a Map and Views, by the Rev. W. Buckland, 

 Professor of Geology in the University of Oxford, 8cc. &c. ; and 

 " Additional Notices on the Fossil Genera Icthyosaurus and 

 Plesiosaurus," with several Plates, by the Rev. W. Conybeare, 

 MG3. 



We have great pleasure in informing our readers that the 

 price of the Geological Transactions will in future be considerably 

 reduced ; the Society having recently taken upon itself the 

 expense and risk of the publication, and consulted economy by 

 the adoption of a fuller page, and the substitution of lithographic 

 plates for engravings on copper. 



Article XVI. 



SCIENTIFIC INTELLIGENCE, AND NOTICES OF SUBJECTS 

 CONNECTED WITH SCIENCE. 



I. Erratum in Dr, Thomsori^s Paper ** On certain Saline Solutions 

 tvhick may he cooledy 8^c.'* 



(To the Etlitor of the Annals of Philosophy,) 

 I>EAR SIR, 

 In the printing of a paper of mine " On certain Saline Solutions 

 which may be cooled, &c." inserted in the Annals of Philosophy ^ 

 vol. iii. p. 169, a mistake has been committed of such magnitude as to 

 render the paper nearly unintelligible. On that account, I think it 

 necessary to point it out to the attention of the reader. The error is 

 this : — A pretty long paragraph which ought to have followed the word 

 water, at the bottom of p. 170, has, by some strange mistake, been 

 inserted at the end of the paper. The portion of the paper at present 

 at the end, and beginning with, ** It will appear from what follows," 

 in line 25, p. 174;, should be placed at the bottom of p. 170. 



I am, dear Sir, yours truly, 



Thomas Thomson. 



