CONTENTS OF VOL. IV. 
■*<> 
Extraordinary Ships. By S. J. Mackie, F.G.S. Illustrated. ...Page 1 
Good Food. By Ed\vin Lankester, M.D. ... ... 14 
On the Origin of Local Floras of Great Britain and Ireland. 
By Harland Coultas, Lecturer on Botany at the Charing Cross 
Hospital. Illustrated ... 28 
Metamorphism. By Professor D. T. Ansted, M.A., F.R.S., &c. ... 40 
Morphological Peculiarities of Linaria Spuria. By E. S. 
Magrath. Illustrated 51 
The Metric System. By James Spear. Illustrated ... ... 54 
Recent Investigations into the Natural History of the Red 
Coral. By the Editor. Illustrated ... ... 67 
What is A Stimulant ? By Francis E. Anstie, M.D. ... ... 77 
The Source of Heat in the Sun. By Robt. Hunt, F.R.S. Illustrated 145 
Soup FOR Children. By Baron Liebig ... .... ... ... 157 
Vegetables, Fruit, and Water as Sources of Intestinal Worms. 
By T. Spencer Cobbold, M.D., F.R.S., F.L.S., Lecturer on Com- 
parative Anatomy at the Middlesex Hospital. Illustrated ... 163 
The Anatomy and Physiology of the Foramtnifera. By W. C. 
Williamson, F.R.S., Professor of Zoology in Owen’s College, 
Manchester. Illustrated ... ... ... ... ... ... 171 
Waves of Heat and Waves of Death. By B. W. Richardson, 
M.A., M.D 180 
Origin of our Kitchen Garden Plants. By Harland Coultas, 
Lecturer on Botany at the Charing Cross Hospital ... ... 193 
The Geology of Mineral Springs. By Francis T. Bond, M.D., 
B.A., F.C.S., Principal of the Hartley Institution, Southampton. 
Illustrated ... ... ... ... ... ... ... ... 203 
Train-Signalling in Theory and Practice. By Charles Y. 
Walker, F.R.S., F.R.A.S., Telegraph Engineer to the South 
Eastern Railway Company ... ... ... ... ... ... 275 
Extract OF Meat. By Charles Boner ... ... 292 
On Sponges. By Robert Patterson, F.R.S ... 302 
The Physical Phenomena of Other Worlds. By Robert Hunt, 
Migrations of European Birds. 
F.G.S., F.L.S 
By A. Leith Adams, M.A., M.B., 
324 
On the Difficulties in Identifying many of the Lower Kinds 
OF Alg^. By J. Braxton Hicks, M.D,, F.R.S., F.L.S., &c. ... 335 
On the Oldest Known Fossil, Eozoon Canadense, of the Lauren- 
TiAN Rocks of Canada ; its Place, Structure and Signifi- 
cance. By Professor T. Rupert Jones, F.G.S 343 
