CONTENTS. XV 



PAGE 



Divers Modes — Limuias ceratopliylli — Another Tube- 

 dwelling Rotifer — Young and Old Specimens — A Grouj) 

 of Yaginicolae — Changes of Shape — A Babble-blowing Vor- 

 ticella 141 



CHAPTER XI. 



NOVEMBER. 



Characteristics of the Polyzoa — Details of Structure according 

 to AUman — Plumatella repens — Its Great Beauty under 

 proper Illumination — Its Tentacles and their Cilia — The 

 Mouth and its Guard or Epistome — Intestinal Tube — How 

 it swallowed a Rotifer, and what happened — Curiosities of 

 Digestion — Are the Tentacles capable of Stinging? — Rest- 

 ing Eggs, or "Statoblasts" — Tube of Plumatella — Its 

 Muscular Fibres — ^^Physiological ^ Importance of their 

 Structure . . . 155 



CHAPTER XII. 



DECEMBEK. 



Microscopic Hunting in Winter — Water-Bears, or Tardigrada 

 Their Comical Behaviour — Mode of viewing them — Sin- 

 gular Gizzard — Wenham's Compressorium — Achromatic 

 Condenser — Mouth of the Ir Water-Bear — Water-Bears' 

 Exposure to Heat— Soluble Albumen — Physiological and 

 Chemical Reasons why they are not killed by Heating or 

 Drying — The Trachelius ovum — Mode of Swimming — 

 Method of Viewing — By Dark-ground Illumination — Cu- 

 rious Digestive iTube with Branches — Multiplication by 

 Division — Change of Form immediately following this 

 Process — Subsequent Appearances 169 



CHAPTER XIII. 



CoNCLUSiox. — Remarks on Classification, etc 185 



