The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1859-08-29

White the preceding nv:.t.aiou was IN progress
was requested, the l8th instant, visit the Cr0soc
lske, in company with the President and Mr.. J. C.
Wlnder, Assistant Engineer We tfaversed the entire
samples Of water from dfsrs Mt parts Of it. The first
sample procured from that part OF the dam where
the water fs, en- ers the The next about one
ourh Of q mile distant The next sample about mil.
forthsr on. The fourth rom the vicinity of Pines
brioee Fifth, from Kleco creek, where It miugles vito
lne waters of the lake. Lastly, sample from the hesd
OF the lake
ply steal examination, at the time Of taking the
samples, revealed nothing different from what
observed In the obtain cd from the reservoirs
IN the city.
of minute floating particles observed in each when
examined with The aid u a magnder. The extrAueou7
parrc most abundsnt in the wafer from dam
rney were found 70 be less apparent
the head Of the lake where the water WAS clear AND
transparent.
pany with Professor Torrey, who through some
oerstanding, did not accompany US on the first
Upon arriving at the lake. we learned that Mr. Adam
the keeper OF The dam and gate had observed
the preceding day unusual quantity Of light green
slightest agitation Of the water this green substance
diinsed 80 as 70 appear lost! but with he had pro-
cured paiull OF 1t, which he had for our
specton Some Of the same material We procured
selves from the surface Of the lake. and took heme
with us samples for chemical and microscopic exami
nation.
Before leaving the spot Eve had strong conviction that
10 this substance might be attributed all the unusual
n, "ey Inc Oroon water thsougnou.
in very c0Dcepr aed degree OF is vegetable nature
we entertained NO doubt
chemical examination Of the green matter rave the
following results -
portion Of it, ylsd with water, was gently heated
and fnaly boiled Upon the first apple ktion Of mo
ders,e heat the color quickly changed from green 10
light buff color. When The uoilpg point the whole
vas converted into thin mucous substance and by
tnuDg the neat the odofOus matter nearly all disap
peaJeo. some Of the green matter, mixed with water
was submitted to dstation when the odorous principle
in the receiver coloress transparent liquid possess
ing the charEciersic flavor Of the original substance
suphuric ether. After subsidence the ether. Viii 81
aofe 10 TIE surface, was separated and evapo
81 sa o o
yer was probably due to chorophy, the green cooring
matter OF plants.
When examined with microscope Of high power the
green substance was seen to consist Of some minute
aquatic plant detailed description OF which given by
Dr. ror.ey. There alBs observed am Dog t few Of
the living animalcu such as tbs mic oscope usually re-
vels in unditered water from fresh water ponds. Il
may he worthy Of remark that 60 far as have obseev
ed the apparent humber Of these living for al Ia much
less III the Coson water now than have noticed in former
examinations.
go much complained of during tho past week two, Is
now rapidly disappearing and that the nearly
regsineo It's pormsl condition. believe the sausual little
paet which We bave ioand in 1t, and whist gave the
paCu ar flavor complained or TO be Of perfectly harm
ess character and consequently that the ~hoesomeness
OF the water mas not been impaired by in the least
gree.
Rave drank freely of u during the time when II wal
In js vortt condition. and have partsken Of the green
matter wnich procured from lake, It's c5ncen
sted state fnd alto after 1t bad been converted
jelly by beat, without eSpel Fencing any ill effects whate
CT T,otp II.
FlusaoD Of the water through the porous filters no
go nocb IN use found eepasste edectualy all the
muut iosnng particles from II, and tau, render i.
,tiLtabie
Uoon comparing the present analysis with the results
that o5tanet in the $50, again 1912 well
as WIN tbe tpsy.s by Prof O. Snmsp, Jr.. ia 1916 |
ind tnat the water 1t ne present purer
osher woTds contains smaller proportion ilorg sn,c
and cher constituents has been found 10 siace tie
liDeraty sud vie foetoousht Of ruers caused the
Introduction OF this source of Countless blessings our
great city JAMES X. CHILtOS