GRAPTOLITES OF NEW YORK, PART 1 753 



Dictyonema murrayi Hall 



Page 606 



] 2 Fragment of rhabdosome 



Sandy sliales at Defreestville, Rensselaer co. N. Y. Original in United 

 States National Museum 



Genus callograptus Hall 

 Callograptus salteri Hall 



Page 584 



13 Fi-agment of rhabdosome showing the character of the thecae. x2 



14 Young rhabdosome, exhibiting a somewhat undulating character of the 



branches 



15 Another young rhabdosome with nemacaulus and more rigid character of 



branches 

 Graptolite bed 2 of the Deep kill section 



