J. Wyman on living organisms in heated water. 159 
a 
oar 
picaie ai 
Ai = ach 
es ee eS. eee ae 
‘Tig. 2. Bacterium ; enlarged four 8 
thousand diameters. ' Prof, Clarke has 
- . They 
ored oval nucleus, around which is 5~"~ 
4 transparent s ace, ‘and around this 
4 gelatinous envelope of extreme deli- 
: They are sometimes seen single but generally double; 
i] more than two are rarely united toget ther 
ig. 3. A linear series of globules enlarged five hundred - 
= diameters; these have the power of locomotio 
tion. 
. Fig. 4. Excessively faint and colorless bodies of great del- 
acy, and changing their fo der the slightest. pressure. 
7 closely resemble the substance described by Virchow as 
: aay meee not only forms the medullary sheath of the nerves, 
I 's also found abundantly elsewhere. ne hl there scarce- 
Y exists a tissue rich in cells in which this substance does not 
exist in Sol og quantities,”* 
5. This figure, also drawn by Prof. Clarke, represents an 
Seas commonly seen in neetlnd ai of the experiments. It a 
enlarged. thirty-five hundred diam 
_, Fig. 6, represents the form of the ie botlion we have lt | 
Monads, and each has a ciliated appendage and i is locomotive. — 
aes ES B.—The ich the experiments described 
ere made, all had the same capacity, viz. about 70 c. Gy 
sy ql € quantity of solution, ome 4 in bat was from 5 to 8c. & 
‘the fluid to be experimented with had been ae 
led at the temperature "of slopes pl 
vessel containing sate soe the whole le heated to 212 
| for various ea 
od co 
