, 1874-04-22

THE PR1SMOIDAL RAILROAD.
What must be considered as o most Battsfac
~ trial Of the now prismoidal railroad waB hat
sterday evening On the circular track In from
the Grand Pacific Hotol., The exoitoment oo
sioned by the building Of tho track has In
sased ratler than diminished, and all day lonf
rowd OF people surrounded it, oriticiatng itt
eular appearance and waiting patiently for tht
gineer to steam up.
f, NEW TRACK.
Within tho past few days the elevated tract
IA been. supplemented by one laid on thf
found, which is almost identical in construction
tho prismoid roads which will be
lit ut an earlY day In different parts OF the
lntry. This piece Of traol1 is not 90 complete
the othcr, as it is not topped with the pecu-
:sort Of rail which is used on tho prismoid
d; but still, tho dummy, which waa placed
N It yesterday morning, ran up and down 1t
falr rate ,s Of speed and with great case. But
ch behind it, which attracted the attention Of
spectators.
AT 10 In THE MORNING,
b engine and coach wero deokod with
"a, and the crowd, seeing that "some-
ag was up, "became unusually demonstratiyo,
crowded round the engine-house. This
1cture is made al specimen, in everything
be put at distances Of ayo blocks along tho
7ated AIRLINE, and il gained by mounting a
tiof eighteen 'steps. At about II O'Clock
engineer pronounced all in readiness for a
!, and crowd Of about twenty passengers
Q taken on board. At first the engine moved
iTly. but the driver let her out, after few
iada Of the track had been made, aud she
along at very fair rate OF speed, rounding
aAarp' cornets-they arc Of radius Of 8715
Win no aiminntion ct speed, md with an
aud grace tlRt waH quite astonishing.
CONVINCING THE INCnEpuLous.
Though the majority Of thoBe present we're
% moro from idle curiosity than ANYTHING
there wero number Of gentlemen watch.
tho mld-alr caroer OF the locomotive aud car
inventor had to submit to o yorY searching
is-examination. One old gentleman, who
not seen the round Of tho track rnsi1n
mnly assured Mr. Crew that the frat tina
engine tried to move round it at q greater
Id leap into the middle Of tho road,
: happened to bo below. Anothor
:leman, from Green Bay, said That if tho
'es we're successfully made he would UNDER
to have 200-mile prismoid road built within
tho Wisconsin pinories. Tho locomotive
accordingly started, with about fifteen people
board. and the three rounds of the track
timed BY two gentlemen who helped tnako
Zip. In order to appreciate fully the capa-
los OF the prismoid system, 1t must bo stated
the engineer had Instructions to run
., a11d that the track iH not yet
such perfect oraor as 1t will be In few
j. Still, the first ronnd-tho circle is exactly
ighth Of q milo in lengtl-waB made in sixty
seconds, the second in tlfty-four seconds,
tho third in tfty-nve seconds, tho
a-oighths Of mile being accom-
sod In two minutes and fifty seconds, being
@ rate OF a mile in about aovon and hall
ties, or eight miles IN hour. whilo during
ound which was accomplished Ia hfty-four
dds the speed was considerably greater.
seeing the feat accomplished, the inoredu-
old gentleman loft tho ground muttoring
thing about natural pl,ilosophy. whiio tho
Bay man Haid that " TINT 200-milo roai
isconsin would have most assurodly 10 bo
:ructed - ~
THE GROUND TRACK.
lille tue elevated truck was more intarest,nr
10 city portion Of tho crowd Of snootntorss
round track waH cloaoly oxamlnoi by uan.'
10 from dlnerent pRrtH OF the co,lttfrv n,,o
hom declared that l,a lad come l50 miioa ~ ~
10 "maHhee1a" A dummy-coacl, viii, room N
at thirty-tiyo passengers, ,yaH p!acel on ti,ia
but ita moEous vera neither so graceful nor
ar III tho locomotive and coacl. on tha ala.
track. The roasons Of this were that tl,a
Was not aa we'll finished AZ tho othor, and