- 15 - 



in the repion southwest of Cjr«nd I^'nnnn. At 25 metres (figure 13) 

 and 50 metres (figure 14), th5 s upwellinp; is not <^?, well marked, due 

 to the fnct thot there is les.'^ v^riqtion in density rut these depths 

 thpn in the surf*?ice layers. As has been noted in viewing the 

 vertical distributions (figures 3, 4, find 5) mixing t'^kes pl^ce 

 progressively jis the waters re^ich into the B»y, so thnt the upper 

 portion of the Bqy a s a whole is shown to produce n fairly well mixed 

 water w^th the waters at the her^d being thoroughly mixed. It is to 

 be noted, however, th-^t consldemble differences in temperature and 

 salinity are to be found between the water in Finns Channel ^nd those 

 found in Chignecto Channel, 



The area of the Saint John Estuary and the area near the mouth 

 of P'^ssamaquoddy Bay have been omitted in plotting the results for 

 the Bay of Fundy. IViese are-'S require special cittention ond will be 

 discussed in I'^ter pages. 

 A Survey of the Passamaquoddy Region 



The P'^ssaniaquoddy area consists of Passamaquoddy Bay and that 

 part of the Bgy of Fundy extending from the entrances to P-^ssamaquoddy 

 Bay to the southern extremity of Grand Manan, and including the Grand 

 Manan Channel. The waters of this region are of particular importance 

 to an understanding of the hydrogrnphic conditions in certain areas 

 in the region around Grand Manan. Considerable -attention was given 

 to this region during the summers of 1928 and 1929. However, much 

 of the dat-a were very difficult to interpret. The data on which this 

 paper Is b-^sed were collected during the period of September 5-7, 

 1929, and are considered the best d-ata obtained for late summ.er con- 

 ditions. The location of stations occupied during the survey are 



