700 



REPORT OF NATIONAL MUSEUM, 1889. 



Figs. 121, 122, 123, and 124* show the variations in form of the angle 

 bar on the Pennsylvania Railroad, 1875, 1880, and 18'.)0. 



Fig. 121. 

 Angle Splice Bar, Pennsylvania Railroad, I87f. 



(From a drawing n the U. S. National Museum. ) 



Fig. 122. 

 Angle Splice Bar, Pennsylvania Railroad— 50-Lb. Rail, 1880. 



(From a drawing in the U. S. National Museum 



Fig. 123. 



Angle Splice Bar, Pennsylvania Rail- 

 road, Standard for 70-Lb. Rail, 1890. 



(From :i drawing in the U. S. National Museum.) 



Fig. 124. 



Angle Splice Bar, Pennsylvania Rail, 

 road, Standard for 85-Ln. Rail, 1890. 



(From a drawing in the U. S. National Museum. ) 



* These plates me from drawings in the collection deposited by Mr. Joseph T. Rich- 

 ards, assistant chief engineer of the Pennsylvania Railroad. 



