Agriculture. : 165 
veered to N. W. and at the same hour when I saw the appear- 
ance in the N. E, the sky was perfectly clear. 
- G. Percivat. 
P. S. Aung. 1, 1826, near sun-set, I observed on the Dela- 
ware, below Philadelphia, a similar appearance to the above. 
The eastern balf of the hemisphere was covered with light 
clouds (cirro stratus). A faint radiation, much less distinct 
than in the former instance, extended nearly to the zenith, ~ 
and laterally nearly to the horizon. The semicircle was 
much larger and more complete than the former, but not so 
distinct as to strike a careless observer. The center of radia- 
tion, as in the former instance, appeared to be opposite the 
sun. The clouds soon passed off with a westerly wind, and 
the following day was clear. 
>, & Agriculture — Wheat.—Dr. JosepH E. Muse, Pre- 
sident of the Dorchester. Agricultaral Society, Md. in an_ 
address delivered before that body, Nov. 9, 1826, states the 
opinion, that animal manures are peculiarly necessary for 
wheat crops, because gluten, the characteristic proximate 
principle of wheat, contains nitrogen, which assimilates it to 
animal bodies. If, therefore, manures of animal origin are 
withheld, the soil becomes less adapted to the production of 
wheat. 
It is proposed by Dr. Muse, as an interesting inquiry, 
**What proportion of gluten does wheat afford in different 
parts of the United States?” He supposes that this princi- 
ple prevails most in the wheat of the south. It would be inter- 
esting to ascertain this fact by experiment. 
Dr. Muse, speaking of the analysis of Amcriean wheat, 
says, ‘From 100 parts of white flint wheat, grown in Dor- 
chester, Md. on a clayey soil, I obtained 30 parts of gluten. 
Wheat grown in northern Europe, is stated to yield only 
about 20 parts of gluten in 100.” 
Dr. Muse concludes, from his own experiments, that cotton 
may be profitably raised in Maryland. He recommends the 
introduction of the madder, or rubia tinetorum, and a great- 
er attention to the farinaceous and saccharine roots—pota- 
toes, beets, carrots, &c. From 100 parts of the beet he ob- 
tained 12 of saccharine matter ; and from the carrot 10 of sac- 
charine and 4 of mucilaginous matter. His address contains 
many judicious and valuable remarks relative to American 
iculture. 
