788 



REPORT— 1900. 



These results are cutlous and interesting, for they seem to show thit the 

 proportions of water and solid contents are practically the same in the fresh egg 

 and in the newly hatched chicken. 



Ultimate analyses were made of the dry matter contained in the fresh egg 

 and in the dried chicken. After deducting the weight of the shell and water 

 from the total weight of the egg, there remained 13-21 grammes of dry matter. 

 This gaye on analysis 



gramme, or per cent. 



Ash . 



Nitrogen 



Hydrogen 



Oxygen 



Carbon 



0-5G8 

 1-171 

 1-202 

 2-295 

 7-972 



13-208 grammes 



4 -30 of dry matter 

 8-87 „ „ 



910 „ 



17-38 „ 



60-35 „ 



100-00 per cent. 

 The same method of analysis showed the dried chicken to consist of 



Ash . 



Nitrogen 



Hydrogen 



Oxygen 



Carbon 



0-676 gramme, or per cent. 



1-091 



0'892 „ ,, „ 



2-261 



6-000 



6-20 of dry matter 

 1000 „ 



8-18 „ „ 



20-62 „ 

 65-00 „ 



10-920 grammes 



10000 per cent. 



Mesults. 



Ash was raised by . 

 Nitrogen was raised by . 

 Hydrogen was lowered by 

 Oxygen was raised by 

 Carbon was lowered by . 



1-90 gramme per cent. 



1-13 



0-92 



3-24 



o'oo ,, ,, 



The increase of ash in the chicken is ohviously due to lime being absorbed 

 from the shell, and combined with phosphorus present in the yolk. 



The increase of nitrogen (equal to 1-13 per cent.) is apparently due to the 

 decrease of carbon. This also applies to the increase of oxygen. The decrease of 

 carbon (5-35 per cent.) and hydrogen (0-92 per cent.) is due to their oxidation, 

 and may be (in part) accounted for as carbonic acid and water passing through 

 the shell during incubation. 



Seemingly we have a rearrangement of the elements above named, and the 

 fact established that water becomes altered into potential living matter, repre- 

 senting the tissues and feathers of the living bird, &c., whilst the ash is also 

 increased hy the abstraction of lime from the shell, combined with the phosphorus 

 derived from the yolk during the hatching process. 



4. On the Physiological Effect of Local Injury in Nerve. 

 By Professor F. Gotch, F.R.S. 



5. Report on the Comparative Histology of the Suprarenal Capsules. 



See Reports, p. 452. 



6. Report on the Vascular Supply of Secreting Glands. 

 See Reports, p. 458. 



7. Report on Electrical Changes in Mdmmcdiarl Nefve 

 See Reports, p. 455. 



