Analyses of the shes of certain Commercial Teas. 249 
as : 
of the principal results of Lieutenant 
Strachey’s ne Shatvs that “the snow-line or the southern 
edge of the belt tual snow in this portion of the Him- 
alaya is at an levator Sof 15,000 feet, while on the northern 
edge it reaches 18,500 feet ; and that on the mountains to the 
north of the Sutlej, or still further, it recedes even beyond 19,000 
feet. The greater elevation which the snow-line attains on the 
northern edge of the gt of perpetual snow is a phenomenon 
not confined to the Thihetan declivity alone, but extending far 
into the interior of the pain ; ‘and it appears to be caused by the 
quantity of snow that falls on the northern portion of the moun- 
tains being much less than that which falls farther to the south 
along the line where the peaks, covered with perpetual snow, first 
rise above the less elevated ranges of the Himalayas.” 
A brief recapitulag ier 
Arr. XXXII.—Analyses of the Ashes of certain Commercial 
Yeas ; communicated by Prof. E. N. Horsrorp, of Harvard 
University. 
1. Souchong Tea; by Edward a oo of the Cambridge 
Laborat 
1st Sample :—per-centage of ash ' by the tea, 5-48 
A Koa teive examination conducted according to the method 
of “al and Fresenius gave for the constituents of the ash, potassa, 
lime, magnesia, peroxyd of iron, phosphoric, sulphuric, 
bedrochlores, silicic and carbonic acids, charcoal and sand. 
A quantitive analysis gave the following per-centage of the 
Several constituents. 
Per-centage, carbonic acid, 
Results of analysis charceal and sand excluded. 
Potassa, : : 3°31 : 
Soda, . : ; 22°78 ; j 25°46 
Ri po os ee EN ope Se 
Magnesia, : 8-58 ; . 9°59 
Periayd of iron, Yt 8-42 
Phosphoric acid, . 11:29 3 . 1262 
Sulphuric acid, . 9:07 . . 10-14 
Chlorid of sodium, 9) See 2-40 
Silica TAS gs ie OOM 
Carbonic acid, : 2°85 ‘ . eget 
Charcoal and sand, 5°38 ‘ ‘ paseo 
97-69 100-00 
Brcoxn Srnrs, Vol. XI, No. 32.—March, 1851. 82 
