IV 
CONTENTS. 
Page 
On the Action of Manures. By Baron Liebig 438 
The Old Red Sandstone Fishes of England. With Tinted Illus- 
tration. By E. Ray Lankester 441 
Oysters and Oyster-Oulture. With Page Illustration. By the 
Editor... ... ... 448 
The Pneumatic Despatch. With Page Illustration. By S. J. 
Mackie, F.G.S. ... 460 
Thermometry. By G. F. Chambers ... 487 
New Inventions ... . ... ... ... 69, 233 
i of Books 
... 83, 
217, 
370, 
501 
to Summary — A griculture 
381, 
514 
Astronomy ... ... 
... 97, 
243, 
382, 
515 
Botany and Vegetable Physiology ... 
... 101, 
247, 
386, 
518 
Chemistry ... ... 
... 106, 
252, 
389, 
523 
Geology and Palaeontology 
... 110, 
257, 
394, 
529 
Mechanics ... ... ... 
. . . 
115, 
262, 
535 
Medical Science ... ... 
... 117, 
265, 
399, 
539 
Metallurgy, Mineralogy, and Mining, 123, 
271, 275, 
403, 
408, 
545 
Meteorology ... ... ... 
... 
.. 
406, 
547 
Microscopy ... ... ... ... 
... 128, 
274, 
409, 
548 
Photography ... ... 
... 128, 
276, 
412, 
551 
Physics... 
... 132, 
280, 
417, 
556 
Zoology and Comparative Anatomy ... 
... 136, 
284, 
422, 
561 
