ANNUAL RINGS IN SCALES. A779 
"| 
gee 
r2|_| | 1 
i = i aim 
BES Os Ato | 
«Ch Serer erin “SRR 
PS 
42 | 
| bo ne aaa ee fe |tea ead | se al Fl eat ae ay 
oar | TA | I 
£6! 0 ee 
Le See aes On| 
ral | | Ly 
ny Besos 1 
aS 
eof || 06 sagoraacne 
7 (a Tn Rs a 
i a 
{ (joe aaa 
Seer Ieee 
VRS ieee Poe Vee aks 
Vise aes sh esse J cf Lee | J 
Pimms er eis is eee 
| sole Sa ea Reese | 
08 I 
16|_| Maw a. agen aAaee 
1-4 O4 ale Eee al 
1:2 
i | Se a Ree eae 4 p+ 
aS 
16 oe ee og} tt 
pas AS WE TAL Tle | oal_| eee 
1:2 
4 eae ge 
mis io 
so Tt yt fat o6| | Y 
oie tae Baas eee 2 ee 
Ao ic Gaeus ease ate | 14 
~ Sey : 
18 ‘Mite al ke teeeeees 
re Cl ees Sees sos 
SREB 
Vee ee 1 
fon.) a 
ry) 06 
14. pees o4 ee ezEe 
{2 
fey 
i SEBeae 
so 
Ow ele 
PEELE j 
Fic. 6.—Partial curves of scales from fish living Fic. 7.—Partial curves of scales from 
in hot water tank. In this and the follow- fish living in cold water tank. 
ing figure the vertical lines passing through 
some of the scales are the lines of demarca- 
tion between two periods of the experiment. 
The figure over each curve indicates the 
corresponding scale in Tables III. and IV. 
