THE BOTANISTS OF PHILADELPHIA. 107 



by the same route up the Missouri, as was suggested in 

 Dr. Wistar's letter. 



His attention was diverted from botany by his 

 appointment to be Justice of the Peace, in 1796. The list of 

 cases tried before him and of the marriages at which he offi- 

 ciated, have been preserved, and show the business of the office 

 to have been considerable. He held this office until his death. 

 That he did not at once discontinue the business of shipping- 

 seeds is shown by a letter to Thomas Russell, of Middle- 

 town, Conn., in 1797 : " I may observe that the present 

 convulsed state of European affairs, with the uncertainty of 

 safe transportation, has given a considerable check to 

 business of this kind. However, a few plants of the follow- 

 ing kinds may be procured. The average price of a general 

 collection may be about ten cents per root." 



Humphry Marshall died in 1801, and on his death 

 a considerable part of his farm west of the Brandy wine 

 passed into the hands of Dr. Marshall. He made use of 

 the water-power in the Brandy wine, and erected a stone mill 

 and dwelling house. The house is still standing. The mill 

 was burned a few years ago. The village of Northbrook, 

 which was formerly known as Marshall's Mill, stands on 

 land once owned by Dr. Marshall, and much is still owned 

 by his grandson. Dr. Edward Marshall. 



After Humphry Marshall's death his nephew seems to 

 have discontinued his former business, as well as his 

 scientific work. I have not been able to find any records of 

 this period, except some accounts which refer to his milling 

 business, and are of no particular interest to us. He was 

 married about 1797 to Alice Pennock. They had six chil- 

 dren, who have left a numerous progeny, most of whom live 

 in Chester Countv. He died in 1813. 



