RNS: Aa 
— ae * : 
: -— Miscellanies. =~ 195 
length. In one specimen the carbonate rested on green prehnite; 
decomposition; indicated by the deep striz in the lines of cleavage, 
had apparently commenced in the lime, and had been subsequently 
arrested, crystallization recommencing, as the sharp edges produced 
__ by decomposition were covered with an infinite number of minute 
crystals, Another specimen assumed the form of a nodule six inches 
in diameter, bearing a strong resemblance to the carbonate of iron. 
Stidbite is found in cavities of prehnite, assuming the form of the 
thombic prism without modifications; also with the modification a 
and c. Chabasie, on prehnite, of a rhomboidal form is met with, 
measuring 94° 46’ and 85° 40’, generally of an opaque milk white 
color, and one sixteenth of an inch in size. Laumonite, abundant. 
Other minerals had been found which he had not been able to deter- 
mine. 
July 3, 1839.—C. K. Ditiaway, Esq., in the chair. 
Dr. D. H. Srorer exhibited living specimens of male and female 
Syngnathus. We stated that numerous males had been taken in this 
Vicinity during the present season, in all of which there existed a 3 
pouch on the abdomen, posterior to the anus, in which were numer- 
ous ova; these Jast were hatched in the course of twenty four hours 
after they were taken. The females were subsequently found and 
recognized by the existence of ovaries. The female deposits the 
| Ova in the pouch of the male, where they remain until hatched. 
& July 17, 1839.—Dr. A. A.Govp, inthe chair, © 
Dr. D. H. Storer stated that since the last meeting he had had 
--_-—s @N opportunity of seeing a large specimen of the Carcharias obscu- 
~~ rus of Le Sueur, taken off Nahant. This specimen was about nine 
feet long, and weighed 800 or 900 pounds. There were six or seven 
rows of well formed teeth, but only one row above and two below 
had as yet made their appearance through the lining membrane of 
the mouth; all the teeth were serrated. ~*~ 
_ Dr. S. also exhibited a specimen of Emys Blandingii of Holbrook, — 
taken in Haverhill in this state.. The only localities heretofore known | 
were the prairies in Illinois and the territory of Ouisconsin, where.” « 
_ they are said to be abundant. This species belongs to the section = 
Hiantes, (Dum. and Bibron,) being unable perfectly to close the shell. 
Dr. T. M. Brewer stated that considerable doubt existed with re- 
gard to the color and configuration of the eggs of the Chicadee. He 
had during the last week received two specimens which were small, 
oval, and uniformly speckled with red spots. 
Mr. J. E. Trescuemacuer exhibited specimens of the following 
plants brought from the Blackstone river, by Mr. F. A. Eddy, a mem- 
ber of the society. —Scirpus sylvaticus of Lin., Willd., Vahl, Hooker, 
