INDEX. 



PAGE. 



2. Walmslej's photo-micrographic 



and copying camera 7 



3. Walmslej's photo-micrographic 



equipment 7 



4. Bausch & Lomb photo-micro- 



graphic apparatus ..... 8 



5. Camera for vertical microscope. 9 



6. Bulloch's lithological stand . . 11 



7. Cvtoleickus sarcoptoides .... 12 

 '^. Laminosloptes galliiioruin ... 12 

 9. New fresh-water infusoria ... 85 



I, 2, j>hvsomo7ias elo7tgata ; 

 3, 4, 5, tetramitus varia- 

 bilis : 6, 7, urceolus sabti- 

 losus ; 8, ckrysopyxis tri- 

 a7igiilaris ; 9, c^. tnacro- 

 trachela ; 10, c^. afnpul- 

 lacea ; II, prorodon lifn- 

 netis ; 12, tracJieloi)Jiyllum 

 clavatum ; 13, perispira 

 strophosoma ; 14, lacryyna- 

 ria teres ; 15, leucophrys 

 curvilata ; 16, stronibidi- 

 nopsis ar.utniftata ; I'j, vor- 

 ticella Jloridefisis ; 18, c-<?- 

 thurnia caiithocampti. 

 10. Funaria hygrometrica, cross- 

 section of stem 87 



PAGE 



Funaria kygrometrica, leaf ... 87 



antheridium 87 



■ archegonia 87 



peristome 88 



section of the theca .... 88 



Parasite of porcellio 161 



Hydra viridis, expanding its 



tentacles 223 



tentacles and mouth .... 223 



part of transverse section 



of body 223 



transverse section of ecto- 

 derm 223 



neuro-muscle cells 223 



nemato cyst or thread cell . 223 



with parasitic trichodinre . 223 



Trichodiiia pediculiis Ehr , lat- 

 eral view 223 



Trickodina pedicidusYj'hx. . . . 223 

 Hydra from original drawing 



of Leenwenhoek 223 



New fresh-water infusoria . . . 228 

 I, ino7iosiga limnobia : 2, 

 salpiTigceca eurystoma ; 3, 

 cluster of desmarella ir- 

 res^itlaris. 



