30 



Mr. Paterson on the Yam. 



TABLE III. 



TABLE OF THE PALL OP RAIN AT SYDNEY COTTAGE, GREENOCK, 

 25 Feet above the Sea. — By Captain M'Kellar. 



MONTHS. 



January, 



February, 



March, 



April, 



May, 



June, 



July* 



August, 



September, .... 



October, 



November, 



December, , 



Average 



3-16 



6-5 



3-96 



2-9 



2-33 



3-36 



4-83 



4-33 



3-4 



5-66 



6-9 



4-9 



62-23 



Total Mean= 51-96 



1846 — Greatest quantity of rain in one day, — 20th Nov. 



1847— Do. do. do. — 6th Dec. 



1848— Do. do. do. — 22d Feb. 



January, 

 February, 

 March, - 

 April, 

 May, 

 June, 

 July, - 

 August, - 

 September, 

 October, - 

 November, 

 December, 



41-25 49-60 49-40 



For Rain, &c,, 1845-46, see Vol. II. page 139. 



Dr. R. D. Thomson read the following paper: — 



V. — Analysis of the Yam. By Mr. Jambs Patekson. 



The very great scarcity of potatoes iaduccd many persons, during the 

 spring of 1 847, to use the yam, from its approaching nearer to the potato 

 in quality than any other known root. 



To understand the composition and relation between these bulbs, I 

 made the following analysis of the yam, which, so far as I know, has not 

 been done previously. For the specimen employed, wliich was of excel- 



