and Changes of Level in Lake Superior. 3 
10 to 15. Pleasant weather ; nothing noted in diary. 
15. Rain last ne cloudy morning ; 2 wind east by north ; 
cleared off at 1 
16 to ve pay weather; pamsing noted in di 
25. W 2 and fog till etek ‘aM. at Salmon Trout 
July 1. Plossant hot weather ; in Ontonagon ry ware 
July 1. Pleasant hah. Wengoats on the west branch of the On- 
west branch his Ontonagon. . 
3to9. Pleasant weather and yery warm ; explormig as above, 
and returning to the mouth of the and coasting to 
peer 3 pM. ; then calm 
the evening, | direction of. Thunder Cape, north, and Thun- 
der Bay, Sa on ovanyofaring after a pleasant calm day 
in summer, a epics ain may be ed... : 
10. © ‘j.¢oasting, west till” 9 sakjedhon the 
heavy west v land ; calm at evening. 
11. Surf. a a in. the n.w. last. ni 
when there was Pleasant day me 
eastward till 3 p.m.; to the west. 4 
Sie one sl wind in the morning s ORE 
from the east. 
13. Strong current’set into the river this morning early. Heavy 
wind at sea from the west at 5 a.m. Iimbarked with boat sail 
reefed, carried away main sheet and broke rudder. Wind hauled 
from the west at 64 a.m. to n.e. blowing a gale, but we were en- 
abled with great difficulty, aud danger of swamping on the bar 
of the Ontonagon, to enter that harbor. After-10, cleared off hot 
and sultry; cold evening and had a fire before my tent door at 
Mendewhalls mines ; musquetees in myriads. 
14, Pleasant, calm day, except the land blasts which were ob- 
served otf the Ontonagon River as hot blasts of air, now from 
one point and then from another. Calm, i occasional hot 
and blasts from the shore of the lake when off the ste sa 
ings of the or gtl went to Misery River. 
Calm an d pleasant, except warm ‘puffs of air off ee: as 
yest 
16. ‘Satis as yesterday, except that on arriving within a few 
miles of. Copper Harbor where the woods were extensively on 
fire, momentary hot blasts of air were often felt, and the air Was so 
thick with smoke that rocks could not be seen at th th 
boat’s length. In the evening and day, there was a: 
agon 7 
Py aoa in morning, ai of. heary — 
showers all ; twenty aie sauith nag ey ee . 
g from the west and. 
y thunder shower and» very vivid lightning i in 
