- 
ad 
240 A, M. Edwards on the occurrence of living forms 
have no proof were living in the water of the Geyser, and might, 
a 
may be desirable to refer at some future time. In the number 
for January, 1867, vol. iii, of Max Schultze’s “Archiv fiir Mik- 
roskopische Anatomie” is a paper by Ferdinand Colm of Bres- 
lau, entitled “Researches on the Physiology of the Phycochro- 
m Florides.” in, besides mentioning many facts 
| « egetable physiology, he states that 
certain Oscillarie, namely, the Beggiatoa (one of which, B. 
emperature, 
geologists, were Oscillari or rather Chroococcacee.” Now sa 
the hot springs of California there have been found Oscillarwe 
nee belonging to this order, besides Diatomacee. 
tney says, (Geology of California, vol. i 94), “Both 
mand a ACen f Calin vol. page 80), Bel 
