CONTENTS 
Corn. By Professor J. Buckman, F.L.S., F.G.S., F.S.A., &c., Illus- 
trated by the Author ... ... ... page, 9 
The Daisy. By Mrs. Lankester. Illustrated by J. E. Sowerby ... 17 
The Crown Animalcule. By P. H. Gosse, F.R.S., with Illustrations 
by the Author, engraved by Tuffen West, F.L.S ... 26 
The Lowest Forms of Life. By the Editor, with Illustrations by the 
Author and Dr. J. B. Hicks, F.L.S. , engraved by G. H. Ford, 
and Tuffen West, F.L.S. ... ... ... ... ... ... 50 
Iron and Steel. By R. Hunt, F.R.S. ... .'. 61 
Artificial Light. By Professor Ansted, F.R.S 80 
The Breath of Life. By W. Crookes, F.C.S. 91 
The West Coast of Equatorial Africa. By the Editor. With a 
Coloured Map ... ... ... 100 
The Great Comet of 1861. By J. Breen. Illustrated by the Author 111 
Caverns and their Contents. By Professor Ansted, F.R.S. ... 135 
The Lowest Forms of Life. By the Editor. Illustrated by Tuffen 
West and G. H. Ford ... ... ... ... ... ... 145 
The Flower Animalcules. By P. H. Gosse, F.R.S. Illustrated by 
the Author ... ... ... 158 
Cotton. By Dr. Lankester, F.R.S. Illustrated by Tuffen West ... 170 
Grass. By Professor Buckman, F.L.S. Illustrated by J. E. Sowerby 186 
The Reflex Theory. By G. H. Lewes 196 
Solar Chemistry. By R. Hunt, F.R.S. With a Coloured Diagram 205 
Optical Phenomena of the Atmosphere. By G. F. Chambers ... 216 
The Phosphorescence of the Sea. With a Plate. By A. de Qua- 
trefages, Member of the Institute of France, &c. &c. Translated, 
with Explanatory Notes, by the Editor 275 
The Sun and Solar Phenomena. With a Coloured Plate. By 
James Breen, F.R.A.S 299 
Light and Colour. With a Coloured Plate. By Robert Hunt, F.R.S. 310 
