117 



JOHS. SCHMIDT 



Fig. 4. To show the temperature in 1000 meters depth and similarly at a depth of 50 meters 

 during the spawning time of the principal gadoids (spring). The difference in temperature at 50 

 and 100—200 meters is but smaU at this time of year. 



The dark broken curves are isotherms for 1000 meters depth. 



The dark unbroken curves are isotherms for 50 meters depth. 



(Prepared by Gand. mag. I. N. Nielsen from Danish, English and Irish observations in 

 1904—1905). 



