Figure 2 1 . — "Pioneer" on exhibit in old Arts and Industries building of the Smithsonian Insti- 

 tution. In this view can be seen the bonnet screen of the stack and arrangement of the boiler- 

 frame braces and other details not visible from the floor. (Smithsonian photo 48069A.) 



Figure 22. — "Jenny i.ind," sister engine of the Pioneer, shown here as rebuilt in 1878 for use 

 as an inspection engine. Ii wasscrapped in March 1905. (Photo courti >i q) E. P. Alexander.) 



262 



BULLETIN 240: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY 



