CONTENTS OF YOL. XY. 
PAGE 
In the Wake of the “Challenger.” By J. G. Galton, M.A., 
F.L.S. Illustrated 1' 
Water Supply and Public Health. By W. Topley, F.G.S., 
C.E * ... .... 31 
The Cretaceous Flora. By J. Morris, F.G.S. Illustrated ... 46 
The “Inflexible” and her Armament. By A. H. Atteridge. 
Illustrated 60 
How Mushrooms are Reproduced. By Worthington G. Smith, 
F.L.S 69 
Professor Tyndall’s Experiments on Spontaneous Generation, 
and Dr. Bastian’s Position. By the Rev. W. H. Dallinger. 
Illustrated ... 113 
Heat and not Light a Motive Power ; or, Experiments with 
Radiometers. By H. A. Cunnington ... ... ... ... 128 
Railway Travelling and Electricity. By W. Preece, C.E. 
Illustrated 138 
Studies of Matter and Life. By Henry J. Slack, F.G.S. ... 149 
Two Coffee Diseases. By M. C. Cooke, M.A. Illustrated ... 161 
Among Glaciers, Recent and Extinct. By the Rev. W. S. 
Symonds, F.G.S. .. 169 
How Hermit Crabs get Possession of their Shells. By A. 
Agassiz ... ... ... 183 
What are Bats? By St. George Mivart, F.R.S. Illustrated ... 225 
The Eighty-Ton Gun, or Woolwich Infant. By Captain C. 0. 
Browne, R.A. Illustrated ... ... ... ... 241 
Aquaria : their Present, Past, and Future. By W. Alford 
Lloyd 
253 
