210 Transactions.—Zoology. 
Appenpix C. 
Tantz of Temperature of Water used in Trout-hatching at Opoho Ponds, 
in 1879. apr wa: 
Date. ero (EIR orca Date. Sate | pe 
house. lower pond. house. lower pond. 
August 20 44 deg. 454 deg, September 29 46 deg. 48 deg. 
‘ 21 488 October 3 48 ,, 494 » 
” 22 4 433 - 9 49 504 » 
26 0 3 Ay = nu 50 5 52 oy 
a 30 5, 47 ,, a 12 50 4, 52» 
September 4 46 ,, 48, is 14 48 4S» 
” 42 , | aes = 15 48s 8 » 
. 17 45 4, rs ee a 21 48 48» 
” 28 a, 6 ,, = 23 514 ,, 514 
Sen a 
Taste of Temperature of Water used in American Whitefish-hatching, 
at Opoho, 1878. 
Se 
Date Hour. | Fahr.} Hour. Fahr. Date Hour. | Fahr. Hour. | Fabr, 
Senin 
Feb. 22| 7 am.|50deg| 2 p.m.|54deg.) Mar. 6| 9 a.m.| 50 deg.) 6.30 p.m. 49 deg 
Oe Ste, ik. ims » 7| 780, | 50 » | 680» {50 » 
a Wie tie So ie, ey , 8| 890, |51, | 690» | 50 » 
« Bien. im, - . epee = ia. tee [he 
» SiN, 1M, |} O20, | Bb;  6\e 2 1a. | 6 1! 
~ Wie. Pes bee ie . nim, i@.|6.» |? = 
» Bf Oy TRL Oy, Lee , ta|7. ,. |, | 60, |e 
Met SS ey Le Cie i glia. 1a. 16 8 1 
. See oe ee ia; » 14] 12n00on | 54, | 7 » |B » 
ie: 4.48 18 om, , 15 | 830am.| 52 , | 680 » | » 
» 41 6, 16. Ee Sele! tae ee Pe 
5|1090 , |49 , | 430, |50 , » 17| 12noon | 54 , | 530» | 5 » 
Sa ae Seco ae 
rican whitefish were received February 2lst, 1878. First box opened all w: dead. 
The 
Second box yielded some good eggs, which began to hatch at once, on being put into the eget 
already qpenrtioned. sap the histehing was over in about one day; so that above table shows 
well as the daily thermal readings. 
_ Nore. —Clark’s Patent American Hatching box 1 has layers of trays of brass wire gauze, on? 
atertight The water flows downwards 
hbrough these, out at bott ising to th Oe eis a cee te e ne 
boxes, and go ons epee maine ire datdonn all sedime: 
