706 



REPORT OF NATIONAL MUSEUM, 1889. 



When it was necessary to take the engine out of the house the _d 

 was straddled across the rail the two arms dropping into holes bored 

 into tbe sleeper. 



Fig. 132. 

 _D_ Staple Iron used as a makeshift for a Fuog, Camden and Amboy Railroad, 1831. 



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



The iron of which the _Q_ was made was thick enough to raise the 

 liange of the locomotive wheel above the top of the rail. After the 

 engine was safely put on the main track the _Q_ was taken out, and 

 both rails were right for the main line. 



Fig. 133. 

 Frogs, Colliery Railroads of England, 1825. 



(From drawings in the U. S. National Museum. ) 



Frogs of various shapes were used on the colliery roads of England 

 previous to the introduction of the locomotive. Fig. 133 is from a draw- 

 ing in the collection, which was made from the report made by William 



&::: 



Fig. 134. 

 Frog, Old Portage Railroad, about 1835. 



( From original in the V. S. National Museum. ) 



Strickland in 1826 to the Pennsylvania Society for Internal Improve- 

 ment, in which two types of frogs, which he examined while iu England 

 in 1825, are illustrated and described. Fig. 134 is drawn from an old 



