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OCTOBER 5th, 1839-MAY 30th, 1840.
"The wants of society call for every man's labour. No one is permitted to be a mere
EDITED PRINTED AND PUBLISHED, BY J. C. ROBERTSON,
TO THE THIRTY-SECOND VOLUME.
Grounsell's drop drill, ib.
Salter's corn dresser, ib.
Jones and Draper's scorcher, ib.
Grounsell's patent corn and manure
machinery for drying grain, 336
steam ploughing, 566, 676, 691
Air and steam-engine, 159
Airy, Professor, on the regulators of clock-
work of equatorials, 689
Alverson's railway springs and buffers, 140
-, (Cutler's) of iron, copper, and nickel,
Arts, Society of, 157, 206
Australia, Steam Navigation Company in,
-, supply of water in Sydney, 224
Babbet's soft metal bearings for railway car-
Bacon's (Rev. H. F.) patent gas burner,
Baddeley, Mr. W., mechanical agitator, 20;
Ballooning, new plan of, by Garnerin, 32
printing, old and new, 748
preserving, Storwell's apparatus for,
Berry's, Mr. E. U., apparatus for preserv-
Bertrand's" Lettres sur les 'Revolutions du
Birmingham Town Hall organ, improve-
Blood, weight of, in human body at different