VI. CONTENTS. 



PART II. 



Ox THE COLLECTING AND PREPARING InTI'SORIAL AnIMALCVLES TOR 



Microscopic examination. 



Page 

 Section 1. On the methods of capturing, selecting and placing Infusoria for 



examination under the microscope 93 



2. On microscopes for examining Infusoria 99 



3. On micrometers and the method of measuring Infusoria 1 05 



4. On glass tubes, &c., for taking Infusoria from the water, and 



placing them in the apparatus for examination 106 



5. On the Compressor or Crush Box 106 



6. On viewing Infusoria by polarized light 107 



7. On the method of feeding Infusoria with coloured substances... 108 



8. On the mode of diying and preser-\dng Infusoria 108 



9. On Infusoria contained in flints and semi-opals 110 



10. To prepare fossil Infusoria for the microscope 110 



1 1 . On mounting Infusoria permanently in fluids Ill 



12. To mount Infusoria as opaque objects 113 



PART III. 



Classification and description of Infusorial Animalcules. 



Class 1. Polygastrica 115 



2. Rotatoria GOl 



3. Tardigrada 681 



List of papers on Infusoria, in the Magazine of Natural History 686 



Description of the Engi-avings, plates 1 to 24 688 



Index to the Families and Genera of Infusoria 701 



Abbreviations used in Fart III. 



Agh. for Professor Agardh, of Sweden. 



B. for Professor Bailey, of New York 



Bre for M. de Brebesson, of Falaise, Normandy. 



Duj. for M. Dujardin, a French natui-aUst. 



E. or (Ehr.) for Professor Ehrcnberg, of Berlin. 



Kiitz. or K. for Professor Kiitzing, author of several elaborate works. 



M. for F. 0. Mullcr, the author of the first systematic Ilistory of Animalcules. 



R. for Mr. Ralfs, author of an elaborate monograph on DcsmidiciE. 



