120 Wisconsin Academy of Sciences, Arts, and Letters. 



It is said to be a trite saying of the Icelander, that the "sun 

 shines on no country equal to his own." In like manner we may 

 boast or as Virgil, "sing praises," not of "men and arms," bat 

 of the richness and variety of the " paleozoic treasures of Mil- 

 waukee County, and other counties contiguous thereto," for a nat- 

 uralist will examine with ecstatic delight, the unexcelled crinoids, 

 as found in the quarries of Eaeine, Waukesha, Bridgeport and 

 Greenville. Probably in no other fossiliferous localities are there 

 to be found such rich collections of Silurian echinodermata. Quite 

 a number of them are delineated and described in part 3 of Hall's 

 Paleontology of "Wisconsin, 1871. 



But since the publication of that work, more perfect specimens 

 and new genera and species have been added to private collec- 

 tions, like that of our worthy president, Dr. P. R Hoy. 



If I claim to have unravelled some of the many perplexing and 

 doubtful theories concerning the organism of the trilobite. Presi- 

 dent Hoy can claim equal success as regards the habits and inter- 

 nal structures of Wisconsin Niagara Echinoderms. 



Although a large proportion of the crinoidea may be found at 

 Eaeine, a majority of the Cystidea are found in Waukesha and 

 Milwaukee counties. 



For Eaeine, besides her unsurpassed Echinoderms, has a won- 

 derful genera, and species of other paleozoic fossils, trilobite heads 

 and pygidia, equal to the largest size yet published or described. 

 Specimens are found of the very peculiar Acidaspis, Bahnanifes, 

 Bronteus, Lichas, SpJmroxochus, Illcemis, Calymene and Asaphus 

 Harpes. 



Exquisitively beautiful is the internal structure of several vari- 

 ties of Cephalopods, that of the Orthoceras ahnorme, with a si- 

 phuncle, having a central siphuncle, composed of minute cyclindri- 

 cal ramifications which reach to the outer walls of the siphon. 

 Also several varities of the Orthocerta, like the O. angulaium, 

 O. columnnre, O. crebescens, 0. Lap)hami, on account of their pecu- 

 liarly constructed chambers, bases or siphuncles, have some re- 

 semblance to Endoceras. 



Quite a number of the Gasteropods claim our attention, as the 

 -Pleurotomaria occidens, Trochoceras costatum, Tremanotus, Tremano- 

 iiis alphenus, Pleuroiomarial Hoyi and P. Halli. 



