nYDROGRAPHIC SECTION BAY OF FUNDY 165 



SESSIONAL PAPER No. 38a 



temperature occur at stations III and IV. These are even more marked in tlie section 

 than in the graphs. The occurrence of such areas about the mouth of the bay of 

 Fundy has been recorded by Bigelow,* who attributes them to the vertical mixing of 

 the water by the strong tidal currents. A stream of water of slightly higher tempera- 

 ture than that around it indicated by a dotted line, appears near the bottom at station 

 II. As the difference is small, the corrections have been made and the second decimal is 

 given for the temperatures at this point. The actual limits of this area, as indicated 

 by the line, are, of course, arbitrary and may be quite wrong, being founded upon 

 the reading obtained at a single point only. It seems, however, that the position 

 indicated is a probable one. It will be noticed that the coldest water is not in the 

 deepest part of the channel, but on the slope coming do\vn from Grand Manan. There 

 is no marked difference between temperatures upon the two sides of the bay, the water 

 towards the Nova Scotia shore (the right of the diagram) being slightly warmer on 

 the whole. 



The densities were determined by bringing the samples to a temperature of 15-56° 

 C. in a water bath and then reading the density from the hydrometer. The results, 

 however, are so irregular that nothing can be deduced from them. As I am not satisfied 

 as to the reliability of our apparatus, I simply give the figures obtained for what they 

 are worth. In each case the density is recorded under the temperature at the same 

 point. 



In conclusion, I wish to thank Dr. Mavor for the constant direction and assistance 

 which he has given me in all the work recorded in these reports. 



* " Oceanographic Cruises of the United States Fislieries Schooner Grampus, 1912-1913," by 

 Henry B. Bigelow, in "Science," N.S., Vol. XXXVIII, No. 9S2, pages 599-601. October 24, 1913. 



