210 



transactions. — Zoology. 



Appendix C. 

 Table of Temperature of Water used in Trout-hatching at Opoho Ponds, 



in 1879. 



Date. 



In upper 



boxes in 



bouse. 



In lower 



boxes at 



lower pond. 



Date. 



In upper 



boxes in 



bouse. 



In lower 



boxes at 



lower pond. 



August 



20 



Fabr. 

 44 deg. 



Fabr. 

 45i deg. 



September 29 



Fabr. 

 46 deg. 



Fabr. 

 48 deg. 



„ 



21 



46 „ 



48 „ 



October 3 



48 „ 



49^ „ 



,, 



22 



42 „ 



m ,, 



9 



49 „ 



50i „ 



» 



26 



40 „ 



41 „ 



11 



50 „ 



52 „ 



i> 



30 



46 „ 



m „ 



12 



50 „ 



52 „ 



September 4 



46 „ 



48 „ 



14 



48 „ 



48 „ 



„ 



8 



42 „ 



44 „ 



15 



48 „ 



48 „ 



„ 



17 



45 „ 



47 „ 



21 



48 „ 



48 „ 



" 



23 



44 „ 



46 „ 



23 



51i ,, 



51J „ 



Table of Temperature of Water used in American Whitefish-hatching, 



at Opoho, 1878. 



Date. 



Hour. 



Fabr. 



Horn-. 



Fabr. 



Date. 



Hour. 



Fabr. 



Hour. 



Fabr. 



Feb. 22 



7 a.m. 



50 deg. 



2 p.m. 



54 deg. 



Mar. 6 



9 a.m. 



50 deg. 



6.30 p.m. 



49 deg. 



„ 23 



9 



52 „ 



6 



57 „ 



7 



7.30 „ 



50 „ 



6,30 „ 



50 „ 



,, 24 



9 



53 „ 



6.30 „ 



59 „ 



8 



8.30 „ 



51 „ 



6.30 „ 



50 „ 



„ 25 



9.30 „ 



54 „ 







9 



8.30 „ 



51 „ 



4 



54 „ 



„ 26 



11 



54 „ 



6.30 „ 



54 „ 



„ 10 



10 



49 „ 



4.30 „ 



51 „ 



„ 27 



10 



51i„ 



12.30 „ 



58 „ 



,. 11 



7.30 „ 



50 „ 



6 



49 „ 



„ 28 



9.30 „ 



53 „ 



6 



54 „ 



„ 12 



7 



50 „ 



6.30 „ 



49i „ 



Mar. 1 



9 



52 „ 



7 



53 „ 



„ 13 



7.30 „ 



52 „ 



6 



53 „ 



» 2 



8.30 „ 



51 „ 



6 



53 „ 



„ 14 



12 noon 



54 „ 



7 



55 „ 



., 3 



11 



51 „ 



9 



51 J „ 



„ ]5 



8.30 a.m. 



52 „ 



6.30 „ 



52 „ 



.. 4 



6.30 „ 



50* „ 



6 



50i „ 



„ 16 



8 



53 „ 



7 



54 „ 



,. 5 



10.30 „ 



49 „ 



4.30 „ 



50 „- 



„ 17 



12 noon 



54 „ 



5.30 „ 



55 „ 



Tbe American wbiteflsb were received February 21st, 1878. First box opened all were dead. 

 Second box yielded some good eggs, wbicb began to batcb at once, on being put into tbe boxes, as 

 already mentioned. All tbe batcbing was over in about one day ; so tbat above table sbows tbe 

 time dui-ing wbicb tbe fisb rem-ained in tbe boxes, as well as tbe daily tbermal readings. 



Note. — Clark's Patent American Hatcbing-box bas layers of trays of brass wire gauze, one 

 above the other, enclosed in a box watertight except at the bottom. Tbe water flows downwards 

 through these, out at bottom and rising to tbe top of an outer box, flows over into tbe next set of 

 boxes, and so on. This seems Ukely to remove all sediment. 



