560 



PEOCEEDINGS OF THE SOCIETY. 



List of Photo-Micrographs. 



{The diameters given are those of the magnification on the lantern slide.) 



No. 

 143. Ditto of Lapageria rosea, x 18. 

 97. Diatoms on coralline, x 17. 



The whole of the above were taken by 

 spot lens, or as opaque objects, except 

 Nos. 72, 90, 98, 99, these being taken by 

 polarized light. 



No. 

 1. Foraminifera, grouped, x 14. 



116. Ditto, from Porto Seguro, x 19. 



117. Ditto, ditto, X 21. 



118. Ditto, from Connemara, X 12, 



119. Ditto, Lagense, x 27. 



121. Ditto, Operculina, x 23. 



122. Ditto, Section of Nummulite, x34. 



123. Ditto, Quinqueloculina, x 27. 



124. Ditto, Dentalina, x 30. 



128. Ditto, siliceous casts of, x 16. 



13. Ophiocoma Eosula, x 12. 



14. Bay of ditto, x 19. 



15. Dental apparatus of ditto, X 10. 



16. Ditto plates of ditto, x 25. 



18. Ophiocoma neglecta, x 8. 



19. TJrastea rubens. 



5. Polycystina, grouped, x 35. 

 4. Ditto, ditto, X 28. 



6. Ditto, " Bull's Horns," x 62. 



39. Ditto, grouped, x 17. 



40. Ditto, ditto, x 42. 



22. Echinus, grouped sections, X 9. 

 23-8. Ditto, section of spine, x 18-34. 



8. Coralline, x 14. 



9. Ditto, ditto, X 12. 



10. Bicellaria grandis, x 14. 



11. Ditto, ciliata, x 20. 



30. Head of Vanessa urticse, X 10. 



33. Ditto of Tipula oleracea, x 11. 



34. Antenna of vapourer moth, x 10. 



74. Synapta, anchors and plates, X 33. 

 90. Pinna shell, section of, x 66. 



98. Eider down, x 13. 



99. Scales of fern, x 38. 

 149. Fairy fly, x 43. 

 156. Cecidomyia, X 32. 

 151. Oak-apple fly, X 10. 



154. Exuvia of Oercopsis (on oak leaf), 



X 17. 

 72. Scale of perch, x 14. 



75. Sponge spicules, x 31. 



148. Winged parasite of Indian bat, 



X 18. 

 109. Section of chalcedony, x 14. 



The following were taken by transmitted 

 light : — 



No. 



135. Flea of wild rabbit. 



59. Parasite of ox. 



126. Ditto of elepliant. 

 44. Ovipositor of saw-fly. 



42. Proboscis of blow-fly, x 124. 

 50. Jaws of spider, x 21. 



48. Spinnerets of spider, X 135. 



49. Claws from house-spider, x 240. 



36. Trachea of silkworm, x 34. 



43. Cirri of barnacle, x 14. 

 70. Spiracle of Dytiscus, x 82. 

 67. Eye of ditto, x 160. 



64. Pygidium of flea, x 248. 

 147. Leiosoma palmicinctum, x 60. 

 38. Glyciphagus plumiger, x 147. 



37. Maple aphis, x 63. 



57. Nycteribia of Indian bat, X 14. 

 56. Abdominal fringe of ditto, x 104. 

 150. Parasite of vampire bat, x 28. 



127. Mange insect of horse, x 100. 

 130. Footof parasite of queen bee, X 164. 

 101. Section of sugar-cane. 



111. Section of ovary of tiger lily, X 13. 



83. Triceratium favus, x 485. 



86. Ditto quadratum, x 357. 



85. Ditto septangulatum, x 192. 

 79. Licmophora fiabellata, x 154. 



139. Auliscus coelatus, x 216. 



86. Gephyrea, x 338. 



137. Pinnularia, x 389. 



89. Aulacodiscusmargaritaceusx 192. 



138. Coscinodiscus, x 343. 

 82. Heliopelta, x 208. 



The following Instruments, Objects, &c., were exhibited:— 



Mr. T. Bolton :— Spawn of Perch. 



Mr. Crisp : — Ahrens's new Polarizing Prism. 



Mr. F. H. Evans and Mr. G. Smith : — Photo-micrographs shown 

 with the Sciopticon. 



Mr. Swift : — Kadial Microscope with rack and pinion to arc, 

 Mayall's removable mechanical stage and fixed mirror fitting. 



New Fellows : — The following were elected Ordinary Fellows : — 

 Messrs. Marshall D. Ewell, Charles F. Forshaw, D.D.S., William 

 Johnson, Alfred H. Mason, F.C.S., John D. Thomas, M.D., T. B. 

 Tyson, Walter Wier, M.B., and Thomas S. Wilkins. Prof. W. A. 

 Kogers was elected an Honorary Fellow. 



