Te Ranet Hrroa.—The Passing of the Maori. 315 
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Trans. N.Z. — tel 14, pp. 459-77, 1 
W. BULLER. The Dec of the Maori eae N.Z. Journal of Science, vol. 2, 
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Р. 
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18 
Archdeacon WaLsH. Тһе Passing of the Maori, Trans. N.Z. Inst, vol. 40, 
pp. 154-75, 1908. 
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2. 
3. 
4, —— The Maoris To-day and To-morrow, Trans. N.Z. Inst, vol 35, pp. 169-86, 
E 1903. 
6. 
RE 
The Food Values of New Zealand Fish: Parts 3 and 4. 
By J. Матсо1м, M.D., and T. B. Hammon, M.A., B.Sc. 
[Read before the Otago Institute, 12th December, 1922 ; received by Editor, 31st December, 
1922 ; issued separately, 8th July, 1924.] 
PART 3: SOME CALORIMETRIC ESTIMATIONS. 
THIS paper continues the series begun by Mrs. D. E. Johnson (Trans. 
N.Z. Inst., vol. 52, 1920, pp. 20-26, and vol. 53, 1921, pp. 1-59), 
and many of the estimations were made on dried-fish powders that had 
been prepared and analysed by her. 
METHODS. 
The form of calorimeter калы was the Berthelot- Mahler. The 
ee ырайын done in compressed o xygen (25 atmospheres), and the 
was taken with a Beckmann thermometer gradua 
in in 1/ 100° C a iid pt with a lens to 1/500°. The те of water used, 
including the water-equivalent of the bomb, &c., grammes 
and our results with substances of DS caloric gra indicated an 
experimental error of less than 1 per cen 
Since it was necessary to extract = "fat" with solvents that are 
this w 
the hole, ind then the calorie values of the extracted fat and of the 
residue separately. By comparison we found that no appreciable change, 
such as absorption of the solvent by the fat or residue, had occurred 
uring the manipulations. 
Example: ln a dried-fish powder (groper 5—see Table I) we found by 
analysis 19-50 per cent. fat (= ether-soluble substance), 6:52 per cent 
extractives, and a residue, chiefly protein and salts = 74-0 per cent. The 
caloric value of the fat was found to be 8-6 calories per gramme, of the 
extractives 5-3, and of the residue 5-6. On calculating the caloric value 
of the powder from these data we get the figure 6-159 calories per gramme, 
while the direct estimation of the caloric value of the powder gave 6:165. 
