378 Intelligence and Miscellanies. 
The association of gypsum and salt is an established geo- 
logical fact, and this adds only another instance. 
are indebted to Lockport, and other places in the 
state of New York, for splendid specimens of gypsum and 
selenite, in most of the forms found in other countries. 
20. Conchology of the United States.—The transactions 
of the American Philosophical Society for 1827, contain a 
valuable article upon the family of the Naiades by Mr. Isaac 
Lea of Philadelphia; in which are described eleven new 
Paxyodon of Schumacher, whose species he thinks, when 
they shall be found perfect, will turn out to be connate shells. 
21. Nutural History in Canada.—-It affords us much 
pleasure to announce to such of our readers as may be un- 
acquainted with the fact, of the existence of two very flour- 
ishing societies in Lower Canada, whose object is, mainly, 
the promotion of natural history ; both of which were foun- 
ded under the patronage of his excellency, the Earl of Dal- 
housie, late governor of the British provinces in North Amer- 
ica. One of these, “the Literary and Historical Society of 
Quebec,” has already commenced the publication of its 
transactions, which, so far as they have come under our ob- 
servation, appear both interesting and valuable in the eluci- 
dations they afford of the mineralogy and geology of those 
regions. The other, called, “the Natural History Society of 
Montreal,” from a printed report of their progress for one 
ar, in forming collections in the different departments of 
natural history, promises to contribute eventually, no less for 
the cause of science in Canada, than its sister society. 
22. Swainson’s new zoological illustrations.—The fourth 
number of this beautiful and highly finished work on natural 
