1923] 



CORWIN, IN SEARCH OF SLIDE MATERIAL 



67 



St. Clair River, St. Clair Lake and Detroit River were traversed 

 on August seventh, each one contributing its share of subjects for 

 lantern slides. This portion of the journey was especially productive 

 of material. It will be recalled that the St. Clair River and Flats con- 

 stitute a summer resort for citizens of Detroit, and hence possess 

 human interest as well as geographical significance. In the compara- 

 tively narrow channels of the St. Clair and Detroit Rivers, the down- 



FlG. 35. — Sailor on the "Christopher" about to mail letters, 

 Marine Postal Service, Detroit River. 



bound or up-bound vessel passes at close range a constant procession 

 of lake craft of all sorts from the lowly "pig" or whaleback to the state- 

 ly passenger steamer. Many of these vessels accommodatingly "posed 

 for their pictures." In the Detroit River the kodak's eye also made 

 note of the unique Marine Postal Service maintained by Uncle Sam 



