CL ROYAL SOCIETY OF CANADA 



Lawrence," describing the current, and explaining the general circula- 

 tion of the water in the Gulf. 



Belle Isle strait, part of 1894 and the season of 1906. Publication : 

 " Tlie Currents in Belle Isle strait," with a chart and three plates illus- 

 trating the character of the current. 



The steamship route south of Newfoundland. Season of 1903. 

 Publication :— " The Currents on the Southeastern coasts of Newfound- 

 land, and the Indraught into the Larger Bays on the South coasts," with 

 a general chart and eight plates. 



Bay of Fundy. Two seasons of 1904 and 1907, given to the lower 

 part of the bay below St. John, N.B., and the steamship routes in its 

 approaclies off southern Nova Scotia. Publication :—" Tables of the 

 Currents in the Bay of Fundy," giving the direction and velocity of the 

 currents, hour by hour, and the time of slack water, throughout the re- 

 gion ; witli a chart of the currents. 



Northumberland Strait, in the season of 1908. An examination was 

 made at seven points in the strait, and more specially at the three prin- 

 cipal narrows where the current is strongest. 



In addition to these investigations with the surveying steamer, ob- 

 servations in the Traverse on the Lower St. Lawrence were obtained from 

 the lightships, during 1896 and 1897 in the Upper Traverse, and during 

 1900 in the Lower Traverse. From these observations, tables of Slack 

 Water are published in the Tide Tables. 



By means of the tidal observations of 1900 in the Lower St. Law- 

 rence, the former Admiralty determinations of the relation between the 

 turn of the current and the tide were reduced to a practical form by 

 bringing them into relation with the tide tables. Special observations of 

 the turn of the current were also taken at L'Islet and Rivière du Loup 

 to check the results. 



In British Columbia, observations of the turn of the current in the 

 leading passes and narrows have been taken from shore, for not less than 

 one complete year, to obtain satisfactory data for the annual variation, 

 which is so pronounced. The periods of observation evtonded from 16 

 to 28 months. From these, a special method of calculation enables tables 

 of Slack Water to be published for First Narrows, Active Pass and 

 Porlier Pass. 



For Seymour Narrows, the only observations are those obtained by 

 the United States Coast Survey in 1897. By calculating tide tables for 

 Port Simpson for that year, the relation of slack water to the time of 

 the tide has been determined, which gives the best results yet available. 



Tidal stations and data. — The tides of the Eastern Coasts of Canada 

 are very varied in character, and in dealing with them, the general 



