APPENDIX. 943 
20 W., mag., at a distance of three degrees from the Halifax line. 
It, too, passes into Hudson Bay, east of Marble Island, and west 
of Nottingham Island. It was remarked that these two parallels 
included similar and different, even opposite courses, the agencies 
not proceeding to any great distance in straight lines, and often 
having their courses changed by obstructing causes. e.g. On 
the east side of Halifax harbor we have S. 5 E. lines, and between 
the Hypothetical lines to the east of Rimouskia line 8. E. 
(Logan’s Tables—Geology of Canada, 1853.) The harbours or 
fjords were seen to run approximately with the parallels, or the 
changed courses. (Vide Admiralty Charts.) 
LINES OF EQuaL VARIATION (Evans.) 
I would observe that the line of equal variation, 20° , (Vide 
Sir Frederick Evans, Manual of the Variation of the Compass in 
Iron Ships, Plate VI., 1870, and Encyclopedia Britannica, Art. 
Meteorology, Fig. 30, Ninth Ed., Vol. 16, 1883) rwns between 
these parallels from Nova Scotia to Hudson Bay. 
Examining Sir F. Evans’ Chart, Fig. 30, Ene., Brit., the line of 
equal variation, 20° in its southerly course, is seen to intersect 
the corresponding line, 20°, which runs through Great Britain at 
about lat. 17° N., and long. 23° W. In my Paper “On Glacial Ae- 
tion at Rimouski, Canada, and Loch Eck, Argyleshire, Scotland,” 
Trans. 1883-4, I incidentally connected glacially what Evans 
connects magnetically. 
I would remark, however, that “Marble Island” seems to be 
in lines of equal variation, 15°. This is west line 20°. Not- 
tingham Island seems to be between lines 55° and 50°, the equal 
variation lines that run along Hudson’s Strait from the 
Atlantic. This is the course of Dr. Bell’s “ Hudson’s Strait 
Glacier. (Vide Report.) 
Line of no Variaticn. (Evans.) 
Having defined this on our chart, we find that it lies to the 
west of all the Hudson Bay Stations, having S. E. glaciation. 
It also lies to the west of all the leading 8. E. lines of Sir W. E, 
Logan’s ables. In fact it passes between the S. E. and S. W. 
