GRAPTOLITES OF ^fEW YORK, PART 1 753 



Dictyonema murrayi Hall 



Page 606 



] 2 Fragment of rhabdosome 



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

 States National Museum 



Genus cALLOGRAPTus Hall 

 Callograptus salteri Hall 



Page 584 



13 Fragment 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 



