RIVER GARDENS; 



" Of the correctness of these facts any one may 

 readily convince himself by examining, with a 

 little attention, fresh specimens of any of the 

 larger Oscillator ice. 



" The evidence which I have adduced on this 

 subject is sufficient, I presume, to prove the fal- 

 lacy of Dr. HassalTs views. 



" Closely allied to the Oscillatorice is the genus 

 Spirillum, the motions of which are equally re- 

 markable. Some time ago I met with one which 

 may, possibly, be new, as I do not find it to agree 

 altogether with any species described either by Dr. 

 Hassall, or any author to which I have been able to 

 refer. It comes nearest to Spirillum Jenneri ; but 

 Dr. Hassall has not seen that species with more than 

 eight or ten spiral coils ; while the specimens I am 

 alluding to have often fifty or sixty spires, and 

 occasionally nearly 100. 



" I have usually found it mixed with various 

 species of Oscillatorice. Its motions are occasionally 

 very active, and are very like those of the larger 

 Oscillatoricz, except that, in advancing across the 

 field of the microscope, the movement is distinctly 

 spiral. I have also very often seen two of them 

 entwine with each other, and thus present a beau- 

 tiful chain or cable-like appearance." 



