The Repertory of Patent Inventions, and Other Discoveries and Improvements in Arts, Manufactures, and Agriculture: Being a Continuation, on an Enlarged Plan, of the Repertory of Arts and Manufactures ...
T. and G. Underwood, 1807 - Industrial arts
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Page 9 - Now know ye, that in compliance with the said proviso, I, the said John Watson, do hereby declare that the nature of my said Invention, and the manner in which the same...
Page 291 - ... the cortical vessels are during this period much distended and full of moisture ; and as the medulla certainly does not carry any fluid in stems or branches of more than one year old, it can scarcely be suspected that it, at any period, conveys the whole current of the descending sap. As the leaves grow, and enter on their office, cortical vessels, in every respect apparently similar to those which descended from the cotyledons, are found to descend from the bases of the leaves ; and there...
Page 294 - ... perceptible. An increased luxuriance of growth now became visible in every plant, numerous blossoms were emitted, and every blossom afforded fruit. Conceiving, however, that a small part only of the true sap would be expended in the production of blossoms and seeds, I was anxious to discover what use nature would make of that which remained ; and I therefore took effectual means to prevent the formation of tubers on any part of the plants, except the extremities of the lateral branches, those...
Page 327 - Fourdrinier do hereby declare that my * said invention, and the manner in which the same is to be carried into effect and practice, are described in manner following ; that is to say : • In the drawings hereunto annexed, Fig.
Page 11 - STONE": in which said Letters Patent there is contained a proviso obliging me, the said Joseph Aspdin, by an instrument in writing under my hand and seal, particularly to describe and ascertain the nature of my said invention, and in what manner the same is to be performed...
Page 202 - ... constructed a small wheel similar to those used for grinding corn, adapting another wheel of a different construction, and formed of very slender pieces of wood, to the same axis. Round the circumference of the latter, which was eleven inches in diameter, numerous seeds of the garden bean, which had been soaked in water to produce their greatest degree of expansion, were bound, at short distances from each other. The radicles of these seeds were made to point in every direction, some towards...
Page 125 - ... and preserve the liquor for use. The article to be cleaned should then be laid upon a linen cloth on a table, and having provided a clean sponge, dip it...
Page 293 - ... weighed as soon as it was detached from the root. Had the true sap in this instance wholly stagnated above the decorticated space, the specific gravity of the wood there ought to have been, according to the result of former experiments,* comparatively much greater ; but I do not wish to draw any conclusion from a single experiment; and indeed I see very considerable difficulty in obtaining any very satisfactory, or decisive facts from any experiments on plants, in this case, in which the same...
Page 295 - I conceived that if their leaves and stems contained any unemployed true sap, it could not readily find its way to the tuberous roots, its passage being obstructed by the rupture of the vessels, and by gravitation; and I had soon the pleasure to see that instead of returning down the principal stem into the ground, it remained and formed small tubers at the base of the leaves of the depending branches. The preceding facts are, I think, sufficient to prove that the fluid, from which the tuberous root...