To the Author of 

 A Monograph of the Palaeozoic Echini . 



Of all the Urchins you have found 



In anyoldzoic strata, 

 I'm hound you never came across 



An Urchin of this natur . 



A hasty study of his parts 



To my mind indicates 

 'Tia hopeless to homologize 



His ambulacral plates. 



Now should you put him in your hook 

 His record this should he 



"In Jordan's Marsh, Massachusetts, 

 Decemher, leg. R. T." 



