Trans. Wis. Acad., Vol. XL 



Plate XL1L 



20 40 60 80 100 120 140 160 180 200 220 Nauplii. 



Depth. 10 20 30 40 50 60 70 80 90 100 110 Crustacea. 



m. 



0|m 



51m 



...10 m 



14° JS° 16° 1 '7° 16° J&°l 20° 21° 22 c 



/2° 13° 











































































































































.15 m 



.20 m 



Fig. 33. — Vertical distribution of Crustacea, nauplii, and temperature, Sept. 8, 1896, 

 noon. Scale, Crustacea (full line), 1 horizontal space = 10,000 per cu. m.; nauplii, 

 1 space = 20,000; temperature, 1 space = 1 degree. See p. 413. 



