126 THE NAUTILUS. 



The Tomahawk Lake shells vary to some extent, those inhabiting 

 the quieter bays having a longer spire and a smaller aperture. 

 These shells closely resemble the Isle Royale specimens and also 

 clearly indicate relationship with appressa. Specimens referable to 

 appressa were collected at one station in Tomahawk Lake, the 

 habitat being marshy in character. Some pathologic lorms occur in 

 the Wisconsin shells, the abnormalities being confined principally to 

 the last whorl and aperture. .Specimens from Lake Harriet, Min- 

 nesota, collected by Mr. L. E. Daniels, are also relerable to this 

 race. 



In the course of time this race will probably assume specific char- 

 acteristics. Its remarkabk iniformity points to this. 



The race is dedicated to my wife, who assisted in the discovery of 

 the type specimens. 



JOHN FOKD. 



John Ford was born in Chester, Pa., November IT), 1H27, and 

 died in Philadelphia, January 10, 1010, He was the son of Lewis 

 H. and Esther (Ogden) Ford, His father died when he was about 

 ten, and he was then practically compelled to shift for himself. He 

 lived for about three years with a farmer in Delaware county, Pa., 

 and then returned to Chester and entered a store. By untiring 

 efibrts the boy acquired a substantial education. His great love 

 of nature and of music was a powerful incentive to self-cultivation. 



On September 6th, 1847, Mr. Ford married Phoebe T. Flavill, 

 of Chester, Pa. After living for a time in Paterson, N. J., and 

 Shipman, 111., he returned to Philadelphia in 1861, shortly after 

 entering the Corn Exchange National Bank, where he was contin- 

 uously employed until July, 1903, when, owing to a severe illness, 

 he was compelled to retire from active business. 



Mr. Ford was afflicted for many years by an ever-increasing deaf- 

 ness, which caused him to avoid social gatherings, and in his later 

 years even scientific and musical meetings. Yet his warm and gen- 

 erous nature found pleasure in the company of a few intimate friends 

 who shared his tastes. 



Mr. Ford was an accomplished musician, many of his compositions 

 having much merit. He especially excelled in melody. Many of his 

 songs written over thirty years ago are still in favor. His first pub- 



