104 DR. HARRIS'S REPORT. April, 1838. 



will be a source of satisfaction to me, if my own humble efforts can 

 contribute any thing towards so great an object ; and, with this as- 

 surance, I beg leave to submit the foregoing report ; 



And subscribe myself, 



Sir, 



Very respectfully. 



Your friend and servant, 



T. W. HARRIS. 



Cambridge, Mass., 

 April, 1838. 



ERRATA. 



Page 58, line 16, for chord read cord. 



" 61, " 23, " appeared " appear. 



" " " 35, " Virginiensis " Virginiana. 



" 64, " 27, " Melonontha " Melolontha. 



" 72, " 18, " prays " preys. 



