CaR<rdianRecordofsnence. 462
too iliohas to one ~ool> ?nuse? BIidentiy bS? the Ira<luent
warterly wioda on LIIke OnU*i?io fol~ciiig Iho wiitor U> ii
bighor lesel in tlie gl?adually eont~a~?tal airea forming tha
I>a~. Clpt. Fluniinp, of rhs steamcl? Jnn>es S~oif(, infPrma
me lbat it oomer and g-oes, and is so wcll knowo tlint wben
bis boat bappe,ir to ground, tlirou~~h misainb? tho <:halioel,
bB nimply wiiita for tlia <' \i?la " M 3giio float il. I,uring u.
ooiitinliour oelin of two or inoi?o dilyJ tho iiM, niiil nill ocaae.
It w aii intercrting fa?t Lhat the aiimmit lovela nf' tbu dif
PBi?ent syatema of laksa rhicli ai?e tho Rouievn of tliu ~sntei?
xupply oF ihe Ridesll Cannl lie ohicng iii tl>u W\\~iirhipa of
ssdfoi?d ao<l Loiiglioolou~h, un<l wirhin n rol?y modu~nte
diatenee or Iial<? Ontio~iu. Tho Il*idwntein of tlie rrounh-
buiough Lake a)?arem ur within seren milei of' I(iiigaton;
Knowl*,o, ibo uppsi?most oE tboJe lnkcn whish tind an out-
let on tlio wlnal nt Miid Lnke, ia wilhin thil?toee lnilosof
tlle Ramo pllioe; \~hilatBobb>a I~ko (Ii eoi?ruplioii, I>srhaps,
olBol>b~8 Lako), the most important ot tho hieliel. lovela oE
the ltirer Tay 4)-~tem, ?mheae w~terJ o.entually rarioh the
Ottawa, iJ ulso aituated iaithin tWDnty.eFB IUilBS Of Kinga-
too. Tho low. bmid i?idg?c uf Sneiss whi?h eonriectr tbe
Laurontian rvoks of New York 8t~iie rsith tho muin runge
in Gaoado fo,?mr the ~ntershod heiw of tbs stl?eaiiia falliog
into tbc Ottnii?il, oo thc one haiid, and tbo St. Iiuwranoe
nnd Lake Ontpi?io, on tbs other. Tlio atriltil ai~, howcrer,
thrown up into rery numoioua aubordioate iidger, ~~liich
lio hero in direolions Fnernlly noi~tb-east iind >?ourli-<pest,
aod some?nhht prnllel to esoh other. Theaa ridgea, pr~~
longed frii? U> tha aouth-west toaalds King*ton, have led to
the formation irnd axtonsion oF lako baJins in thut ilii?e<;lion
Thosa who planned the Iti<loau Canal, Iiotnbly LI>I. Bg,
aboaed tbeil? onpineering akill in tnking adrantabiu of Iho
number snii dilferont lo~alx ol' thess lske biuins ro pi?oeore
an ade<luete aupply o? ~nter ter navigation on tbc xunimit
lerel ~r well n* oo hDtb slopes, oaiisiog the wlitol?l Jeme-
limas, oe in the Loughbolau~h UIike snd the Dc<-il'r Iiaks
Jyatema, to almost double on themael~ier.
This graat ~ater aydtem, inBluding in it Bfty-three Irikos
~ahiob a~e Br>m one to Afteen milos loug, has inotber pecu-
Liplity~ tbat theJe lskea lie, ~~ilb only four nnimpol.taot