Geology, ^i-c. of the Connecticut. 217 



a little tinged with red, a quarter of an inch hroad. The cen 

 tre is occupied by an a iiethystin ? j^eode of a light purple. 

 Weight of the whole agate, twenty-three pounds. 



No. 2. Face seven inches by four — Outer band, one 

 fourth of an inch wide, of yellowish red camelian; second 

 band greyish white chalcedony, one fourth of an inch. The 

 remainder of the space is occupied by a geode of limpid 

 quartz. The outer coat of carnelian is broken off from a 

 ]are;e oart of this specimen, leaving bare the whi ish chalce- 

 dony, and it haa a strong resemblance to the human crani- 

 um; exhibiting similar protuberances and concavities. 



No. 3. Face three inches in diameter — outer band of yellow- 

 ish red carnelian — second do. chalcedony a little tinged with 

 red. one tenth of an inch — third do. cacholong, one tenth 

 of an inch — fourth do. light carnelian, one tenth of an inch. 

 The centre is occupied by common quartz, not forming a 

 geode. 



No. 4. As it appears at one end : Diameter of the face 

 three inches — outer zone three fourths of an inch thick, of 

 yellowish green chalcedony — second do. carnelian, one 

 fourth of an inch — third do. quartz, having a greasy aspect 

 — fourth do. dark grey translucent chalcedony, a mere line 

 in thickness— fifth do, quartz or milk colored chalcedony, 

 one tenth of an inch — sixth do. dark g:ey chalcedony, a line 

 broad — seventh do quartz, one fiftielh of an inch — eight do. 

 dark grey chalcedony, a line broad — ninth do. quartz, one 

 tenth of an inch — tenth do. chalcedony, a line broad — elev- 

 venh do. quartz, one fiftieth of an inch — tv.'elfth do. a line 

 of chalcedony — thirteenth do. quartz, one thirtieth of an 

 inch — fourteenth do. a line of chalcedony. The centre is 

 occupied by limpid quartz. This is a fortification a^ate, 

 and the parallelism of the several bands is most exactly 

 preserved, and the angles are perfect. Viewed on a face 

 at right angles to that above described, this specimen exhib- 

 its a striped or ribband agate. 



No. 5. Made up of an almost countless number of dark- 

 er and lighler colored bands of whiteand grey chalcedony 

 —two or three small agates appearing on the same face. 



Vol. VI.— No. 2. 28 



