38 THE AMERICAN MONTHLY [Jan. 



ions. In the cortex of the cerebrum and cerebellum they are 

 sjiread out into thin but very extensive layers containing a 

 great variety of cells. The inter-relations of these neurons is 

 also a subject of importance which recent researches have dem- 

 onstrated satisfactorily for the first time. The old theory that 

 the processes of adjacent cells join together, forming everywhere 

 a fine network of nerve fibres within the gray matter, has been 

 discarded. For the method of Golgi has shown that each cell 

 is an independent entity, its branches and sub-branches of both 

 varieties preserving their identity from origin to ending, inter- 

 lacing, it may be, with those of other cells, as the branches of 

 trees in a forest may interlace, but as really distinct and sepa- 

 rable from each other as are those trees with their twigs and 

 leaves. 



Examination of " Foul" Sea Water. — Stroke and deep 

 inoculations were made in agar and gelatine tubes, and kept at 

 19-20° C, at which temperature all the following observations 

 were made. The growths were all aerobic, being visible along 

 the stroke in 24 hours faintly. The organisms were found to 

 be mixed, and plate cultivations on gelatine for purposes of 

 isolation were made in the usual way. After several transfers 

 from plates to tubes, and from tubes to plates, isolation was 

 effected. Two kinds were occasional, and probably adventitious. 

 Three kinds were persistent. 



The two occasional kinds were: — 



1. A straight rod, motile during the first day, rapidly liquefy- 

 ing gelatine ; soon becoming motionless, and breaking up into 

 spores, with a putrid smell. 



2. Small round organisms, motile to some extent, with a move- 

 ment like Brownian movement, breaking up into spores, and 

 liquefying gelatine rapidly, with a putrid smell. 



These were not observed further. 



The three persistent kinds were all rounded bodies, of which 

 tube cultivations on agar are produced. They all liquefy gela- 

 tine slowly. The tubes are marked respectively " Star, " "White," 

 and " Yellow." 



No. 1, "Star," cultivated on a plate at 19-20°. 



In 24 hours showed no visible growth. In 36 hours there ap- 

 peared numerous whitish spots, plainly visible under a 1 in. 



