Perpetual Motion Again

"I houestly ttelieve," saW Arthur L. Reyuolde, oí Boston, "tliat somethJng borderlng very upon perpetual muiioii will eventually be disooTered, altliounli evory man who talkfi perpetual motioa now is looked upon as in incipient lunatic. My reasoii íor ihis Idea is the rapidity with wlii.h the word 'impossilile' is being itmovcil ïrom tlie meciuanlea] engineer's dietionary. As far back ;is I eau rmömber, engineers have pegretted the Immense loss of liowor caused by stopping veüiicles, espedally those aeed for earrying pasi.rs stort dlstances. It is Paid t:i tiike five times as ran?li power ov [orce to stop a veliicle as to haul it alomg level grouad, and it takes ten times as mueh power to start it again. Hundreds of ideas have Leen pugft'ested for storing tlie waeted forcé i:i etoppiug vehícles, but every suggestion Qa been Impracticable on aecmmt of the innmenee weight of the macBlnery required íor the purpose. N'ow a clevice has been perfected anu is in comal use, whicli welgit but a íe-w pounde aml absolutely retains more than li-üf the power used in stop pin.ff a vehicle. When the drlver wishes to stop he places his foot on a f-raall lever, whereupcm a powerlul spring rtoes a great deal of tlie work otherwise requlred of the brake. nniftii íifi -vvants to start again lie literatee the catcb ml the spring uncoils itself. Tliis experiment, when trieiï1 witli horses on the leve!, worked too well and ixraietlmes threw thO horses down by the sudden jerk. T'i liill. however, it rèlleved them of a terrible strain. When applied to , i . .; pie m reel ear service it should prevent vx great de il of burning out of rosee, ana aJso relieve the englnes a great deal wheo thiere is a sudden peeiming o! traille after a temporary