228 



ORGANISMS FOUND IN 



the next day's examination to be more numerous, though chiefly 

 as free commas or single joints scattered loosely and generally 

 immobile. The size varied from almost straight, short rods to 

 the full-size curved joint, some having, as is very commonly the 

 case, the curves opposed, others with the curve turned the con- 

 trary way or assuming the spiral shape. In some of the free 

 joints one end could be seen to be slightly larger than the other. 

 Although diligent search was made for growing spores, I was 

 not able to conclusively satisfy myself upon this point ; but in 

 photograph, P"ig. 59, such a condition as stated is to be seen 



-^ig- 59- — -^ ^^^ f''^^ commas or joints of spirillum before formation of 



colonies, x 520. 



in the central comma in the field, where the appearance is that 

 of an oval enlargement, placed rather irregularly at one end, and 

 a somewhat similar state is seen in one or two of the others. 

 Scattered about in the field, though infrequent, well-defined 

 round or rather oval bodies were noticed, which I concluded 

 were the spores of the spirillum, and not of the long rods, which 

 appeared to be a trifle larger. Amongst the few comm^as that 

 were mobile, it was most difticult, after numerous methods of 



