APPENDIX D 315 



APPENDIX C 



THE PRESERVATION OF , HUMAN MILK 



EFFORTS have been made in Germany and Austria to provide human 

 milk for sickly babies where wet-nurses were either not available or not 

 available in sufficient number. For this purpose women having more 

 milk than is required for their own babies have been persuaded to 

 express as much milk as possible and to bring it up to the hospital, 

 where it is preserved in the cold room. In order to increase the length 

 of time during which this milk can be kept, hydrogen peroxide has been 

 added. It appears from the work of Knape and of Mayerhofer and 

 Pribram that the milk can be preserved for at least twenty-four hours, 

 and possibly longer. On keeping it tends to develop a musty odour 

 which is rather disagreeable. Knape states, however, that the children 

 fed on this milk under his care did very well. The same result also 

 appeared to have been obtained by Mayerhofer and Pribram, but very 

 much larger quantities of hydrogen peroxide are necessary to preserve 

 the milk than in the case of cows' milk. In some cases calcodat (calcium 

 peroxide) was used as a preservative. They also used this milk dried 

 with varying results ; in some cases it appears to have been quite 

 satisfactory. Davidsohn gives cases of children fed upon human milk 

 which had been kept for twenty-four hours and mentions, as do also 

 the above authors, that the milk develops a musty smell, rendering it 

 less agreeable to the older children, although the younger ones did not 

 appear to dislike it. 



REFERENCES 



DAVIDSOHN, 'Neue Methode zur Unterscheidung von Frauenmilch und 



Kuhmilch,' Zeit. f. Kinderh: 1913, viii. 14. 

 KNAPE, ' Ueber Konservierung von Frauenmilch,' Monats.f. Kinderh. Origl 



1911, x. 281. 

 MAYERHOFER AND PRIBRAM, 'Praktische Erfolge der Ernahnmg mit 



konservierter Frauenmilch/ Zeit. f, Kinderh. 1913, iii. 525. 



APPENDIX D 



TABLES AND ADDITIONAL DATA RELATING TO THE BERLIN MATERIAL 



Results obtained by Working up the Material. In working up the 

 material which had been obtained from the Berlin consultation the 

 first point was to add the weights of all the babies of each series at 

 the same day of life, and then divide by the number of babies weighed, 

 thus obtaining the average weight of the babies under consideration 

 at the same day of life. 



The average weights so obtained showed considerable inequalities, 

 and the number of them was unwieldy and cumbersome. It was 



