120 )f ' INDEX TO TRANSACTIONS. 
Hemiaulm punciatus, 28. 
„ reticulatus, 27. 
„ ? ? robusius, 54. 
„ spnmetricus, 53. 
„ tenuicornis, 29. 
Huggiiis, W., on the prismatic ex- 
amination of microscopic objects, " 
85. 
L. 
Limnaeus stagnalis, 93. 
Liradiscus Barbadensis, 5. 
ellipticus^ 99. 
minutus, 47. 
Live- trap, on a new form of, and para- 
bolic reflection, by R. Beck, 113. 
M. 
Maddox, R. L., on a wire spring clip, 
84. 
Maddox, R. L., on photo -micrography, 
34. 
Microscopical Society, annual meeting 
of, 16. 
P. 
Paraflan oils, by W. H. Hall, 87. 
Pinnularia Hartley ana^ 57. 
Photo-micrography, its application and 
results, by R. L. Maddox, 34. 
Plagiogramma WallicManum, 1. 
Polycystina, on the structure and 
affinities of, by G. C. Wallich, 57. 
Porodiscus major, 46. 
,, splendidm,4:Q. 
Porpeia quadriceps, 52, 100. 
„ ornata^ 53. 
„ quadrat a, 53. 
Prismatic examination of microscopic 
objects, by W. Huggins, 85. 
Pulmogasteropoda, on the anatomy of 
the generative organs of, by A. 
Sanders, 89. 
Pyxilla Johnsoniana, 2. 
R. 
Reflector Parabolic, and Live-Trap, R. 
Beck on, 113. 
S. 
Skeletonema Barbadense, 43. 
Slack, H. J,, notes on the vinegar 
plant, IL 
Spectroscope, on the application of, 
to the microscope, by J. Browning, 
Stictodiscus Hardmanianus, 98. 
Strangulonema Barbadense^ 44. 
Synedra clavata, 25. 
T. 
TricerafAum aranosum, 33. 
„ brevinervum, 101 . 
„ Dobreeamm, 6. 
„ Jiguratum, 101. 
„ Hardmaniarum, 55. 
,, implicitum^ 102. 
inglorium^ 103. 
„ latum^ 103. 
„ Moronense, 32. 
„ neg ledum, 7. 
„ nitescem, 8. 
,, parallelum^ 104. 
„ pauperealum, 55. 
,, polygonium,\0^. 
„ quadratum, 104. 
„ reticulatum, 104. 
5, sexangulatum, 103. 
,, zonatulatum^ 102. 
Thaumatoncma ? cortatum^^l . 
V. 
Vinegar plant, notes on, by H. J. 
Slack, 11. 
W. 
Wallich, G. C, on the structure and 
affinities of Polycystina, 57. 
Wenham, F. H., notes on the frac- 
ture of polished glass surface, 105. 
