C¥XVIII 
TIDES. 
eA TEMES Ti ye Pee AY so tig 5 
mountains, fuch as yield fecurity and tranquillity to the finned inhabitants, 
We find the foundings to be moft unequal: in fome places only twenty-two 
fathoms, in others the lead has not found a bottom with a hundred and fixty 
fathoms of line. On fuch places the fifh might reft undifturbed during the 
rage of the tempeftuous winters. I do not find the leaft notice of fhells be-= 
ing met with in thefe feas: either there are none, or they are pelagic, and 
efcape the eyes of the navigators. But nature probably hath made ample pro- 
vifion for the inhabitants of the fea, in the quantity of fea-plants which it yields ; 
STELLER, the great explorer of this region, enumerates the following, many of 
which are of uncommon elegance : 
Fucus peucedanifvulius, Gm. Hift. Fucor.76 Fucus rofa marina - - 102 
Fucus turbinatus - - - 97 Fucus crenatus - - 160 
Fucus corymbiferus, £. - - 124 Fucus fimbriatus - = aia 
Fucus dulcis, &. - ~ - 189 Fucus anguftifolius - - 205 
Fucus tamarifcifolius *, £. Fucus agarum - - 210 
Fucus bifidus - - - 201 Fucus quercus marina + 
Fucus polyphyllus - - 206 Fucus veficulofus, Sp. P/. 1626, E. 
Fucus clathrus ~ - 211 Ulva glandiformis - - 232 
Fucus myrica - - 88 Ulva Priapus - - - 231 
Of thefe the Quercus marina is ufed as a remedy in the dyfentery; and the fe- 
males of Kamtfchatka tinge their cheeks with an infufion of the Fucus tamari/ci- 
folius in the oil of Seals. 
In the harbours of Sts. Peter and Paul the greateft rife of the tides was five 
feet eight inches at full and change of the moon, at thirty-fix minutes paft four, 
and they were very regular every twelve hours. The Ruffian philofophers 
obferved here a fingular phenomenon in the flux and reflux of the fea twice in the 
twenty-four hours, in which is one great flood and one fmall flood; the laft of 
which is called Manikha. At certain times nothing but the water of the river 
is feen within its proper channel; at other times, in the time of ebb, the 
waters are obferved to overflow their banks. In the MJanikha, after an ebb of 
fix hours, the water finks about three feet, and the tide returns for three hours, 
but does not rife above a foot; a feven-hours ebb fucceeds, which carries off 
the fea-water, and leaves the bay dry. ‘Thus it happens three days before and 
* Hift. Kamt{chatka, 44: + Same, 124. t Poyage, iii. 323. 
after 
