HIPPOLYTK VARIANS. 



6o7 



Experiment 2 (continued), 

 and brown weed. 



Head to hump brilliant trans- Diffuse light j after 3 

 parent blue; behind hump minutes' exposure 



1 segment greenish, resi blue lost; now green 



greenish browu ; antenual with dark blue spots, 

 scales brownish red ; wliitej with great disposition 

 mid-line ; eye-stalks blue- to take cover under 

 green ; eye black red weed 



fransparent, specially in mid, 

 green 



Very transparent ; behind 

 hump, ant. scales, and eye- 

 stalks reddish ; mid. pale 

 greyish red 



No noticeable 

 change 



In 4 minutes reddish 



tinge lost ; ant. 



scales only faintly 



reddish 



Exposed in white porcelain dish to difiuse light till 

 10.30 p.m. 



Ant. scales brown; 



behind that dull 



green ; behind 



hump browu 



Unaltered 



Brown- 

 white 

 stripe 



Less 

 transparent 



Added fi'om circu- 

 lator air dish with 

 Ulva, 2 small green 

 specimens (Ulva not 

 added) ; put back 

 in dark 10.35 p.m. 



Green, 

 not very 

 bright 



Transparent, 

 faint, 

 reddish 



r Very 

 transparent 

 bright green. 



L 



Smaller, 



bright green ; 



put back in 



dark. 



into porcelain disli, using hand-mirror. Fresh water added after each examination. 



