168 Mr. Bauer’s experiments on the colouring matter 
mouth of the glass, filling and occupying the perforations 
and cells in the ice; and from the base of the sediment, in- 
numerable small air bubbles were visibly and rapidly evolv- 
ing, by whose means, I think, the fungi are raised in the 
manner they are found during the time that the snow is dis- 
solving. The small portion of fungi in the corner of the 
glass had also considerably increased, and spread in the snow 
above the small glass : see Fig. 4. 
After making a drawing of the above described appear- 
ances, I deposited the small glass again into the larger one, 
which was filled with snow, as before, and exposed in the open 
air, where it remained till the 19th of January, 1820, when 
the weather changed, and a sudden and general thaw set in ; 
after all the snow and ice were dissolved, and the glass stood 
several hours at rest, I had the satisfaction to find the appear- 
ance of the contents of the small glass, exactly as repre- 
sented by Fig. 5. 
If the sediment in the glass, represented in Fig. 5, is com- 
pared with that of Fig. 2, it is evident that, (though a con- 
siderable portion of the sediment had at several times been 
taken out of the glass for examination, and by the frequent 
changing of the water, some loss was sustained) the increase 
of fungi, within less than two months, has been more than 
double. 
The only difference I observed, on examining the indivi- 
dual fungi of the newly formed sediment, was, that the num- 
ber of larger than ordinary sized full grown fungi was greater 
in the newly formed sediment, than I ever found in the origi- 
nal sediment, brought from Baffin’s Bay, where the ordinary 
size of the full grown red fungi is about a part of an 
