CONTENTS. 



Pag-e 



Communicated by John Scott Russell, 

 M.A., F.R.S.E., F.R.S.S.A. Communi- 

 cated by the Royal Sottish Society of Arts, 51 

 V. Postscript to Description of Mr Tait's Port- 

 able Diorama, which may be viewed by a 

 number of persons at a time ; on page 275 

 of the preceding Volume. Communicated 

 by the Royal Scottish Society of Arts, . 53 



VI. Some Remarks on the Methods in common 

 use of obtaining the Mean Temperature of 

 Places, and on the supposed difference be- 

 tween the Temperature of the Air and that 

 of the Earth. By Professor W. M. Carpen- 

 ter, . . . . .63 

 VII. Observations on the Temperature and Hygro- 

 metric State of the Atmosphere of the 

 Island of Barbadoes. By Robert Lawson, 

 Esq., Assistant-Surgeon 47th Regiment. 

 Communicated by the Author, . . 57 

 VIII. Quantity of Salt in Sea- Water, as determined 

 by the examination of specimens collected 

 in a Voyage from Southampton to New 

 York. By Dr Daubeny, F.R.S., &c., &c., 65 



IX. Examination of Specimens of Sea- Water, col- 

 lected from different Localities. By Dr 

 Daubeny, F.R.S., &c., &c., . . 66 



X. Historical Notices in regard to the distinction 

 of Nerves and Nervous Filaments into Mo- 

 tive and Sensitive; and in regard to the 

 peculiarity of function, and absolute isola- 

 tion, of the ultimate Nervous Filaments. 

 By Sir William Hamilton, Bart., . 67 



XI. Notice of the Discovery of a nearly complete 

 Skeleton of the Zygodon of Owen (Basilo- 

 saurus of Harlan) in Alabama. By S. B. 

 Buckley, A.M., . . . .77 



XII. On Artesian Wells. By Admiral Sir David 

 Milne, G.C.B. Communicated by the 

 Author, ..... 79 

 XIII. Remarks on the Geology of the Island of Little 

 Ross, Kirkcudbrightshire. By Thomas 



