118 Scientific Intelligence. 
greatest breadth of the trunk of the larger tree was about one foot, and 
it diminished from this very gradually for about fifteen feet, which is 
the extreme length to which they have been uncovered. The stem of 
the larger tree was divided transversely at nearly regular intervals of 
two feet below the larger and three feet distant from it. The cast or 
impression of the larger tree gives its characters more distinctly than 
of West Point, who confirms the supposition that they were coniferous. 
No con 
such, or in fact any other fossils, been obtained by the quarrymen, 
although there is a tradition that many years since, trunks of trees 
Mr. M 
other parts of this deposit, but without success. By the zeal and goot 
management of this young gentieman, about four feet in length of 
first instance in which the trunks of hard-wooded trees have been ob- 
served in situ in the Connecticut sandstone. Fragments of agatized 
wood have been found in Massachusetts by Prof. Hitchcock, and in the 
smaller secondary basin of Southbury, Ct., and large stems of reed-like 
plants are found in the beds which furnish the fish at Middlefield im 
the same state. B. Srruiman, Jr. 
Yale College Laboratory, June 1, 1847. 4 
7. Observation on the Basaltic Formation on the northern shore of 
date than the Devonian strata, sienite, porphyry, greenstone and trap, 
both compact, amygdaloidal and basaltic. It is of the last-mentioned 
formation that we now speak. 
