IV 
CONTENTS. 
On the Light-emitting Apparatus of the Glowworm. By Henry 
Fripp, M.D. ... 314 
Sun Force and Earth Force. By Dr. Richardson 327 
The Eruption of Santorin. By Professor D. T. Ansted, FJR.S. ... 337 
On the Movements of the Diatomacile. By E. Ray Lankester . . . 395 
Aerolites. By Townshend M. Hall, F.G.S ... 407 
On the Electrical Principles of the Atlantic Telegraph. By 
Professor G. C. Foster 416 
The Bone Caverns of Gibraltar, Malta, and Sicily. By A. Leith 
Adams, A.M., M.B., F.G.S., &c 429 
Notes on Lophopus Crystalltnus. By J. Josselyn Ranson and 
T. Graham Ponton ... ... 438 
Genesis, or Parthenogenesis ? By H. E. Fripp, M.D 442 
Modern Views of Denudation. By Edward Hull, B. A., F.G.S. ... 453 
How to Work with the Telescope. Part II. By Richard A. 
tor, B.A., F.R.A.S. ... 
.. 
462 
of Books 
... 78, 
211. 
345, 
473 
ic Summary — A griculture 
.. 
... 
223 
Astronomy 
... 91, 
224, 
355, 
485 
Botany 
... 95, 
228, 
358, 
490 
Chemistry 
... 99, 
233, 
362, 
494 
Geology and Palaeontology 
... 103, 
237, 
365, 
498 
Mechanics 
... 112, 
241, 
369, 
502 
Medical Science 
... 108, 
242, 
371, 
504 
Metallurgy and Mining ... 
... 120, 
251, 
376, 
508 
Meteorology 
119, 
, 247, 
379 
Microscopy 
... 115, 
249, 
381, 
509 
Photography 
... 123, 
254, 
382, 
512 
Physics ... 
... 128, 
258, 
386, 
516 
Zoology and Comparative Anatomy 
... 132, 
262, 
390, 
520 
