178 



REPORT — 18G9. 



Depth, 

 feet. 

 120 .. 



Temp. 



Date. 



180 



240 



495 July 2, 1869. 



49-5 



49-60 



49-65 



49-52 



49-60 



49-60 



51-0 



51-0 



51-21 



51-20 



51-21 



52-7\y 



52-7r 



52-90 



52-75? 



52-91 



52-90 



52-90 



52-95 



300 



360 



53-9... 

 63-8... 

 53-86 . 

 53-92 . 

 53-90 . 

 53-90 . 

 53-90 . 



65-7?. 

 55-40 . 

 55-36 . 

 55-39 . 

 55-31 . 



2 

 5 

 6 

 6 

 9 

 9 



2 

 2 



5 

 5 

 6 



2 

 2 

 5 

 5 

 9 

 9 

 13 

 13 



2 

 2 

 5 

 5 

 6 

 9 

 9 



5 

 5 

 6 

 9 



Depth. 



feet. 

 360 ., 



Temp. 



Date. 



390 



420 



55-30 July 9, 1869. 



55-45 „ 13 „ 



55-33 „ 13 ,, 



65-35 „ 13 „ 



5611, 

 56-09 . 

 5613 . 



56-9 . 

 57-30 . 

 67-20 . 

 57-10. 

 57-09 . 

 57-18 . 

 67-20 . 



450 



480 



488 



525 



57-80?, 

 68-10... 

 5810... 

 58-32... 

 68-00... 



58-7 . 

 68-72 . 

 58-70 . 

 58-70 . 



59-05 . 

 59-00. 



59-3 . 

 59-6 . 

 69-9?. 

 59-40 . 

 59-40 . 

 59-45 . 



9 



9 



13 



5 

 5 

 6 

 6 

 9 

 9 



9 



9 



9 



13 



13 



5 

 6 

 6 



9 

 9 



2 

 2 

 5 

 6 

 6 

 9 



In regard to these observations, I have to remark that the thermometer 

 had to be drawn up with great caution, as I found that the thermometer 

 case, or a knot on the cord, meeting -with a slight obstruction from rugged 

 parts of the bore, produced a sufficient shock to cause the detached portion of 

 the mercury to sink, which rendered the observation useless. The discre- 

 pancies in some of the observations marked (?) may be due to this cause. 

 In several cases, when the shock was distinctly felt, I found the reading very 

 low, and at once rejected it. 



The mode of procedure was as as follows : — the readings were taken gene- 

 rally at intervals of 60 feet (10 fathoms). For the smaller depths iced water 

 was used to set the thermometer below the temperature of the locality to be 

 tested, and on being brought to the surface, it was put into the water while 

 taking the reading for considerable depths ; this was unnecessary, as its 

 passage through the colder upper strata served the purpose sufficiently. Fre- 

 quently two observations were taken at one depth in succession, but never 

 more, before proceeding to the next greater ; and in no case was a reading 

 taken at any depth after one had been made at a lower on the same day. 



Between the depths 390 feet and 450 feet there is continuous shale, and I 

 thought it might be interesting to have the temperature of both these localities. 



At the depth of 488 feet commences a bed of greenstone about 140 feet thick, 

 but the sediment prevented me from getting more than 37 feet into this bed. 



