J. Nicklés on Different Applications of Magnetic Attraction. 337 
Arr. XXXIII.—Researches on Different Applications of Mag- 
netic Attraction ; by M. J. Nicxu#s, Doctor in Science. 
Part I.— Use of Magnetic Attraction in Locomotion on Railroads. 
Tue researches here described, have been in progress three 
This apparatus consists of a framework of iron; F, (fig. 1.) 
moving on 4 wheels in pairs, , 
to whicha rotatory movement | 
is imparted by means of a_ 
weight B,acting on the wheels 
in place of steam. Another 
weight A, fixed at the ex- 
_—— 
of a cord, represents the re- 
sistance, or the charge to be 
rawn 
This car was placed on a railtoad C, whose grade could be 
track, and so that its arms were separated by the distance be- 
pass over the rail, and motion began when the weight A was re- 
moved ; although the adhesion was sufficient for transporting its 
own weight, it was not enough to balance the resistance exerted 
by A, (A representing the train to be drawn.) The addition of 
the electro-magnet was intended to give to the driving wheels 
Sxconp Series, Vol. XVI, No. 48.—Nov., 1853. 43 
