382 Miscellanies. 
signed is too short; for a geological survey, must be the result of 
careful and discriminating observation and must involve both multi- 
plied details, and enlarged views founded on science. ‘The project 
of a geological survey of Connecticut, was brought forward before 
the Connecticut Academy of Arts and Sciences, more than twenty 
five years ago, by Prof. Silliman, and adopted. A report was 
then made by him to that body of the mineralogy and geology of 
the vicinity of New Haven, which was published in the ‘Trans- 
actions of the Academy, and was we believe, the earliest example 
of the kind in this country. No funds being provided for prosecuting 
the undertaking it necessarily slumbered. 
The discovery of the verd-antique marble and serpentine near 
New Haven,—a mineralogical and geological tour in the counties of 
New Haven and Litchfield, (This Jour. Vol. II, pa. 201,) the ac- 
count of the Trap rocks near Hartford, (Id. Vol. X VII, pa. 119,) 
the report of Prof. Mather, on the Geology of the Eastern and North 
Eastern part of Connecticut, (Id. Vol. X XI, pa. 94,) and the re- 
port of Mr. Alfred Smith, on the geology of the valley of the Con- 
necticut, (Id. Vol. XXII, pa. 1,) besides many less important no- 
tices, prove that the subject has not been forgotten. 
We are however, much gratified to see the project revived by 
Gov. Edwards, and that a similar movement is taking place in other 
states, in accordance with the spirited effort in Massachusetts, by 
Prof. Hitchcock. 
The time, we trust, is coming, when all our vast territory will 
have been surveyed, geologically, topographically and tngonomet- 
rically, and when some master-spirit will digest, arrange and elu- 
cidate all the immense store of facts and refer them to their proper 
uses both im science and the arts. 
The object is well worthy of the expenditure of millions. 
40. Uranite at Chesterfield, Mass.—Mr. Supparp, has lately 
found this mineral in the ‘Tourmaline vein disseminated through the 
lamine of Albite. It is in crystalline plates and pulverulent; and 
is uniformly of an emerald green color. ‘The variety from Middle- 
town, quoted in SuEeparp’s Mineralogy, is of a pale siskin green 
color. : 
Al. Question by B. Thornton, L. S., New York.—Given any 
two lines as AB, BC, change one of those lines, and represent two 
mean proportionals between the said changed line and the other; 
