IV 
CONTENTS. 
The Great Exhibition Buildings. With an Explanatory Plate. 
By W. Fairbairn, C.E., D.C.L., Member of the Building Com- 
mittee, President of the British Association for the Advancement 
of Science page 317 
The Application of Science to Electro-Plating. By G. Gore . . . 327 
Artificial Precious Stones. By W. S. IIowgraye 332 
The White Clover. By Mrs. Lankester. With Two Plates by 
Tuffen West ... ... ... ... ... ... 337 
The Human Heart. By Isaac Ashe, B.A., T.C.D 350 
The Great Exhibition of 1862. Introduction : the Agricultural 
Implement Department. Part I., with page Plate. By Howard 
Reed ... ... ... ... ... ... ... 405 
The Britannia and Conway Tubular Bridges. With page Plate. 
By W. C. Unwin, B. Sc. .. 416 
Primitive Astronomy. With two Coloured Illustrations by the 
Author. By the Editor 426 
The Physics of a Sunbeam. With a Coloured Plate. By R. Hunt, 
F.R.S. 438 
The English Califprnia. By G. P. Bevan, F.G.S. 444 
The Contents of Caverns (concluding Part). By D. T. Ansted, F.R.S. 450 
The Microscope, with Directions for its Use. Illustrated with Wood- 
cuts. By C. Collingwood, M.B., F.L.S 461 
The Builder Animalcules. With a page Plate. By P. H. Gosse, 
F.R.S. 474 
The Common Truffle. With a page Plate. By Jabez Hogg, 
M.R.C.S., &c. 496 
Miscellanea ... ... ... ... ... ... 123, 223, 362, 502 
Reviews of Books ... ... ... ... ... 116, 232, 370, 506 
Scientific Summary — Quarterly Retrospect ... 128, 247, 379, 511 
