1921-22.] Obituary Notices. 389 
From the two years which he studied in detail, Dickson was able to 
deduce the general order of seasonal displacement of the so-called Gulf 
Stream and all its associated currents, and so to correct the vague and 
contradictory speculations which had figured in popular descriptions and 
even in textbooks for generations. It is to be regretted that the work 
did not attract more attention at the time, but it remains, richly illustrated 
by maps produced by Bartholomew, in the Philosophical Transactions of 
the Royal Society of London for 1901 (Series A, vol. cxcvi, pp. 61-203). 
