146 



THE ROYAL SOCIETY OF CANADA 



26. Wm. Stewart 



Cape Sable Island, N.S. 



27. H. Nelson Newell 

 Cape Sable Island, N.S. 



28. P. W. Nickerson, 

 Cape Sable Island, N.S. 



29. Sterilized salts. 



Pink- 



Pink 



Pink 



Pink 



No colour Pink 



Pink 



Pink 



Pink 



The Mediterranean salts and Turks Islands salt were sterilized by boiling in 

 water, allowed to recrystallize and then tested, with the following results: — 



Iviza 



Torrevieja 

 Turks Islands A. 

 Turks Islands B. 



A. B. 



No colour in any 

 No colour in any 

 No colour in any 

 No colour in any 



C. 



D. 



The results of these experiments show conclusively that all 

 known solar or sea salts, such as Iviza, Trapani, Torrevieja and 

 Turks Islands, contain the red organism which produces the pink 

 discolouration of codfish. 



On the other hand, the mined salts, such as Liverpool and 

 Malagash, have never produced the pink discolouration and we have 

 never been able to find any red organism in mined salts. 



We have frequently checked these results by microscopical 

 examination and cultural tests, and find the same organism in the 

 solar salt as in the discoloured red fish. 



Samples 12, 14 and 17, and from their appearance numbers 21 

 and 25, were salts that had been used a second time. They still 

 contained the red organism. 



Sample 18 was a salt a year in store, yet it contained the red 

 organism. 



Sample 13 had been used on other fish than cod — herring, hake, 

 etc. It gave to sterilized fish red colour, but did not grow on the 

 other media. 



From the economic standpoint the exclusion of solar salt from 

 the fish trade might cause hardship to the fishermen by increasing 

 prices of mined salts and perhaps curtailing the supply. We suggest 

 as a remedy that the salt dealers equip their establishments with a 

 kiln and run all tropical salt through this machine, thus sterilizing 

 or, at any rate, causing the death of the red organism which has a 

 relatively low thermal death point. 



The solar salts dissolved in water, boiled and recrystallized did 

 not contain the red organism. 



