STATE GEOLOGIST. 103 



mica] and scientific internet I nave tfa 



fttcr amount i . hical 



detail thai lone En n tin- other groups. For the 



mination urallelism between this formation and the 



■ st, litholog 

 riders b the mort rtant, from the £ srcity 



in our formation, and the entire absence of those 

 ch furnish the means of certain identification in In- 

 diana, Illinois, Missouri and other Statu 



Prom the account which lias been given, there is obvons diffi- 

 [n identifj ups thai 



kblished by the researches of Owen, Hall, Swal- 

 low. Worthen, M I and others. Little attention has 

 »il remains, bnt the following nor 

 .; observed, may be hero recorded: 



of the Carboniferous Limestone of Michigan. 

 "The numbers prefixed refer to the University Catalogue.] 



POLYPL 



1ST. Lithostr tion mammillare, Edwards end Htrime. 

 The Bpecim< entirely with figures and descriptions 



by Hall [owa, Wisconsin, &c). 



- in that vicinity. 



Lithodendron) longiconicum ? Phillip*. 

 rally distributed, luxuriantly c 

 and branehh ophylloid, pn eternally the non- 



sppearan I icum, while it has the 



imella of L. sociale, Phillips. It is l< 

 eitix 1 not improbably constitutes*^ dis- 



tinct type. 



Grand Ra llevue, Great Charity Island, 



I't. an Ores. 



- - thophyllum i 



. 

 i, Q : ". in. r :• 23. 



• 1 than the figure of De Koninok, (Anim 

 PI! I», 1 - well with 



Tin' lasi named is 



