382 Anmt^il Fair of the American Institute. 
It is continually escaping, at ordinary temperatures, from the 
•wood, and may«be seen crystal ized on cedar posts, boards, or tim- 
ber, either exposed or sheltered, presenting the appearance, at 
first sight, of white mould. It is readily soluble in ether and boil- 
ing alcohol; less readily soluble in cold alcohol and oil of tur- 
pentine ; slowly soluble in acetic and oxalic acids; and almost, 
if not entirely, insoluble in water. Readily soluble in sulphuric, 
less readily soluble in hydrochloric and nitric acids ; and sligiitly 
soluble in ammonia and solutions of caustic potash. 
The crystaline principle of red cedar, and that of the outside 
bark of the white birch, are both under examination. They agree 
vary closely in many of their characters. 
ANNUAL FAIR OF THE AMERICAN INSTITUTE. 
The twenty-first annual fair and exhibition of this very useful 
institution will commence on the 3d of October next, at Castle 
Garden, in the city of New- York. 
The following are some of the general arrangements. 
"Exhibitors of specimens for premiums, excepting cattle and 
other live stock, agricultural and horticultural productions, &c., 
are required to bring them to the Garden, and obtain a certificate 
from the clerk of the Fair, on Friday or Saturday, the 29th and 
30th days of September, previous to the opening of the exhibition. 
Monday, October 2d, will be appropriated for the arrange- 
ment of the contributions. Vegetables, fruits, and flowers, for 
the horticultural room, should be brought this- day, before 12 
o'clock. 
Great show of choice roses and dahlias on the 9th, at 12 o'clock, 
at the Garden, for special premiums. 
All contributors are earnestly desired to bring their articles 
early on the receiving days, as it will increase their claims to the 
best locations, enable the managers to open the Fair more per- 
fectly arranged, particularly operating machines, as time is re- 
quired to adjust and fit their connexion with thej)ropelling steam 
powder. 
"Each exhibiter is requested to hand to the clerk, at the time 
of entry, the name of the article, the name and I'esidence of the 
manufacturer, and by whom sold, distinctly written; it will facili- 
tate the completion of a full and perfect catalogue, be satisfactory 
to visiters, and useful to the contributor; but to insure impartiality 
from the judges, it should not appear on the article until the de- 
icilion is made by them; also, a written description, and the pro- 
cess of fabricating or producing, if peculiar, and particularly of 
