570 BULLETIN OF THE BUREAU OF FISHERIES 



Table 12. — Temperature readings of the waters of Lakes Nipigon, Michigan, and Huron 



Location 



Date 



Time 



Depth, 

 in fath- 

 oms 



2J^ miles south of Livingston Point. 



do 



do - 



do 



do _ 



do... _ 



do — 



do.... 



do 



Oil Blackwater River 



MICHIGAN 



Green Bay, 8 miles south of Green Island. 



_do. 



Green Bay, 4 miles west of Boyer Bluff 



do — 



10 miles E. by N. of Algoma, Wis 



do _ 



20 miles N. by W. % W. of Michigan City, Ind. 

 do._ 



HURON 



30 miles east of Alpena — 



HYz miles SE. by S. from Alpena can buoy 



do..__ — 



14 miles N. by E. of Thunder Bay Island 



16 miles northeast of Cheboygan 



22 miles SE. by E. H E. from the can buoy, Alpena. 



do - 



6 miles NNE. of Thunder Bay 



do_ 



July 28,1922 



do 



do 



do 



do 



do.. 



do 



do 



do 



do 



10 a. m_ 



5 p. m. 



Aug. 14,1920 



do 



Aug. 18,1920 



do 



Aug. 24, 1920 



do 



Oct. 11,1920 

 do 



Sept. 12, 1917 

 Sept. 17,1917 



do 



Sept. 18, 1919 

 Sept. 29, 1917 

 Sept. 13, 1919 



do. 



Nov. 16,1917 

 do 



(') 



16.2 



5 



14.9 



10 



10 



12 



7.8 



15 



5.9 



20 



5. 2 



25 



4.9 



40 



4.4 



2 56 



4 



(') 



19.5 



(>) 



19 



2 16 



10.9 



0 



18.9 



J24 



6.3 



31 



5.1 



49 



4.2 



(') 



i6:8 



40 



4.2 



»65 



4 



(') 



14 



2 15 



10.3 



2 60 



4 



(') 



11.8 



(') 



15.6 



2 35 



5.4 



(') 



6.6 



2 8 



5.6 



i Surface. 2 Bottom. 



Table 13. — Temperature readings of the waters of Lake Superior 



Location 



Date 



Time 



Depth, 

 fathoms 



7 miles WNW. of Point Iroquois Light 



do - 



6 miles northeast off east end light of Michipicoten Island. 



....do - - 



....do — 



Below Leach Island... 



12 miles off Coppermine Point 



12 miles off Alona Bay 



Black Bay, off Demers Point 



....do.. - 



South of Thunder Cape Light 



Off Crow Point - 



....do 



Simpson Channel - 



do - 



do - 



do — 



Morn Point - 



do 



Armour Harbor 



do — 



do.... - - 



Moffat Strait - - 



do.. 



do - - 



21 miles west of Ontonagon, Mich 



do - 



6 miles NNW. of Ontonagon, Mich 



June 14,1922 



do 



June 19,1922 



do 



....do 



June 23,1922 

 June 26,1922 



do 



July 20,1922 



....do 



do 



Aug. 5, 1922 

 Aug. 10,1922 

 Aug. 5, 1922 



do 



do 



Aug. 10,1922 

 5, 1922 

 10, 1922 

 5, 1922 

 10, 1922 



do— 



Aug. 5, 1922 

 Aug. 10,1922 



....do 



Aug. 24,1921 



do 



Aug. 25,1921 



4 p. m. 



9 a. m 



2 p. m. 



8.30 a. m.. 



12 m 



2 p. m 



4.30 p. m_. 



10 a. m 



9 a. m 



10.30 a. m. 

 4.45 p. m__ 



Aug. 

 Aug. 

 Aug. 

 Aug. 



10.30 a. m. 

 4.15 p. m._ 

 5.30 p. m__ 

 1.15 p. m_. 

 2.30 p. m.. 



11.15 a. m. 

 12.30 p. m. 



(') 

 2 25 

 (') 

 20 

 (') 

 (') 

 (') 

 (') 

 (') 

 2 8 

 (') 

 (') 

 (') 

 (») 

 5 



10 



0) 

 0) 

 'i 



(') 

 (■) 



2 4 



(') 



64 

 34 



1 Surface. 



J Bottom. 



