Contents, 



PAGB 



and Habits — Structure of Gizzard in Philodina Family 

 — Mr. Gosse's Description — Motions of Rotifers — Indi- 

 cations of a Will — Remarks on the Motions of Lower 

 Creatures — Yarious Theories — Possibility of Reason — 

 Reflex Actions — Brain of Insects — Consensual Actions 

 — Applications of Physiological Reasoning to the Move- 

 ments of Rotifers and Animalcules . . . .76 



CHAPTER VIII. 



AUGUST. 



Mud Coloured by Worms — Their Retreat at Alarm — A 

 Country Duck-Pond — Contents of its Scum — Crypto- 

 monads — Their Means of Locomotion — A Triarthra 

 (Three-limbed Rotifer) — The Brachion or Pitcher Roti- 

 fer — Its Striking Form — Enormous Gizzard — Ciliary 

 Motion inside this Creature— Large Eye and Brain — 

 Powerful Tail — Its Functions — Eggs . . . .86 



CHAPTER IX. 



SEPTEMBER. 



Microscopic Yalue of Little Pools — Curious Facts in Ap- 

 pearance and Disappearance of Animalcules and Roti- 

 fers — Mode of Preserving them in a Glass Jar — Frag- 

 ments of Melicerta Tube — Peculiar Shape of Pellets — 

 Amphileptus — Scaridium longicaudum — A Long-tailed 

 Rotifer — Stephanoceros Eichornii — A Splendid Rotifer 

 — Its Gelatinous Bottle — Its Crown of Tentacles — 

 Retreats on Alarm — Illumination Requisite to see its 

 Beauties — Its Greediness — Richly-coloured Food — Ner- 

 vous Ganglia 97 



