60 THE HAMILTON ASSOCIATION. 
CRINOIDS. 
“Tt must be remarked that the Lwcrinites (chambered shells) 
‘¢ of this early period are not so numerous or perfect in form as in 
‘secondary strata. In mountain limestone Crinoides attain their 
“meridian.” ELEMENTS OF GEOLOGY By D. Pace. 
Since No. 2 (page 47), was collected, Mr. Schuler, one of the 
members of the Geological Section, obtained No. 4, another single 
stalked Acanthograptus from the same horizon as No, 2. They are 
identical species probably, but the thorn-like process seems more 
marked. — 
