APPENDIX C. xxxix 



showed no change. After eleven days there was still no 

 apparent change, though on the thirteenth a slight amount 

 of flocculent sediment was noticed. This deposit increased 

 in amount, very slowly, during the next fortnight; though 

 afterwards the fluid seemed to undergo no further change, 

 and did not become generally turbid 1 . 



No. XXVIII. Healthy Urine (J) and Filtered Turnip 

 Infusion (f), after forty- eight hours showed a very slight 

 turbidity, which, however, became quite marked in another 

 twenty-four hours. 



No. XXIX. Albuminous Urine ( J) and Filtered Turnip 

 Infusion (f ), after twenty-four hours, showed a slight turbi- 

 dity, which became much more marked in forty-eight hours ; 

 whilst in seventy-two hours there was a considerable deposit 

 at the bottom of the flask. 



No. XXX. Simple Turnip Infusion showed no change 

 in forty-eight hours, though in seventy-two hours there was 

 well-marked turbidity. The turbidity and sediment con- 

 tinued to increase for several days, and both were most 

 marked on the tenth day, when the flask was opened. There 

 was an outrush of gas, having an extremely foetid odour. 

 The fluid had an acid re-action, and when examined micro- 

 scopically, multitudes of Bacteria, Vibriones, and Leptothrix 

 filaments were found the movements of the Bacteria being 

 very languid. 



FOURTH SET OF EXPERIMENTS (XXXI XXXVII). 



b. Fluid in contact with ordinary Air and its Particles ; 

 Flask Sealed after the Fluid had become Cold. 



No. XXXI. Healthy Urine remained in the warm-bath 

 for twenty-eight days without undergoing the least change. 



1 Still in my possession, unopened. In all probability the flocculi 

 which formed would be found to be similar in their microscopical, as 



