The following analysis of maize is given by Dr. Samuel David, of Massachusetts:—­

FLESH FORMING PRINCIPLES.

Gluten, albumen, and casein 12.60

FAT FORMING PRINCIPLES.

Gum, sugar, starch, woody fibre, oil, &c. 77.09
Water 9.00
Salts 1.31
-----
100.

Prof.  Gorham, in “Thomson’s Organic Chem.,” published in London in 1838, gives another analysis:—­

Fresh grain.     Dried grain. 
Water              9.00
Starch            77.00            84.60
Gluten             3.00             3.30
Albumen            2.50             2.74
Gum                1.75             1.92
Sugar              1.45             1.60
Loss               5.30             5.84
------           ------
100.             100.

Professor Johnston supplies a table, which, he says, exhibits the best approximate view we are yet able to give of the average proportion of starch and gluten contained in 100 lbs. of our common grain crops as they are met with in the market.

From this table I extract the following:—­

Starch, gum, &c.      Gluten, albumen, &c. 
Wheat flour.              55 lbs.             10 to 15 lbs. 
Oats                      65  "               18    lbs. 
Indian corn               70  "               12     "
Beans                     40  "               28     "
Peas                      50  "               24     "
Potatoes                  12  "                2-1/3 "

The Professor remarks that the proportion of oil is, in 100 lbs. of

Wheat flour         2   to   4
Oats                5    "   8
Indian corn         5    "   9
Beans and peas      21/2   "   3
Potatoes            01/4   "

Maize is one of those plants in which potash preponderates, for analysis of its ashes gives the following proportions:—­

Salts of potash and soda 71.00
——­ lime and magnesia 6.50
Silica 18.00
Loss 4.50
------
100.

Dr. Salisbury has also furnished the proximate analysis of five varieties of ripe maize or Indian corn:—­

Proportions. 
One hundred grains of each.  Water.  Dry.

Golden Sioux corn, a bright, yellow, twelve-rowed}
variety, frequently having fourteen rows } 15.02 84.98
Large eight-rowed yellow corn 14.00 86.00
Small eight-rowed ditto 14.03 85.97
White flint corn 14.00 86.00
Ohio Dent corn, one of the largest varieties of }
maize } 14.50 85.50