322 COMPOSITION AND NUTRITIVE VALUE OF COTTON-CAKE. 
Among the objects of interest so abundantly presented by 
nature to the microscopist, we find in the waters an almost 
endless variety of Diatomacea , commonly but erroneously 
called u Infusoria.” Here again nature exhibits her sportive 
moods. On many, taking her rule and compasses, she draws 
with precision mathematical figures—lines, angles, triangles, 
squares, and circles. On others, bars, bends, crosses, crescents, 
and stars. To these, her exquisite models, she has given 
the most delicate” touch and finish of her pencil. 
The microscope has truly been called an (e avenue to unseen 
glories in new worlds,” for it brings before every beholder 
not conversant with its “ wonders” forms in endless variety, 
which before he would not have thought it possible could 
exist in nature, presenting prototypes of beauty and sym¬ 
metry exceeding even the wildest fictions of the most fertile 
imagination .—New York Spirit of the Times, 
ON THE COMPOSITION AND NUTRITIVE VALUE OE 
COTTON-CAKE. 
By Augustus Yoelcker. 
{Continuedfrom p. 206.) 
2. Decorticated Cotton-cake {Thick cake). 
This cake is from 2J- to 3 inches thick, but does not other¬ 
wise differ materially in its outward appearance from thin 
cake. It is very hard, and cannot be broken into small bits 
by ordinary cake-crushers, and for this reason does not com¬ 
mand so ready a sale as the thin cake, although it is sold at 
10s. to 15,?. less money. 
Two samples of thick cake, both imported into Liverpool, 
yielded on analysis the following results : 
Composition op Decorticated Thick Cotton-Cake. 
No, 1. No. 2. 
Water ....... 1025 9*08 
Oil . . . . . . 14-05 19-34 
^Albuminous compounds (flesh-forming matters) . . 41'31 43"31 
Gum, mucilage, and digestible fibre (heat-producing 
substances) ...... 18 - 05 10*48 
Indigestible fibre ..... 8*40 10-41 
Mineral matters (ash) ..... 7'94 7*38 
* Containing nitrogen 
100-00 100-00 
6*61 6-93 
