An appeal to the medical profession, on the utility of the improved patent syringe, with directions for its several uses, shewing, by a statement of facts, the validity of the rights and claims of the patentee.

  • Read, John, 1760-1847.
Date:
1824
Catalogue details

Licence: Public Domain Mark

Credit: An appeal to the medical profession, on the utility of the improved patent syringe, with directions for its several uses, shewing, by a statement of facts, the validity of the rights and claims of the patentee. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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    of water near the stem of the tree, and having eharged the Syringe, throw the shower between the tree and the wall, directing it against the hack surface of the leaves, where the insects are placed, by which mode, the fluid effectually and speedily sweeps off both the insects and their eggs and larvae, and thus prevents a succession of these injuiious animaleulae. The Barrow Engine can only be brought to play upon the Jrnnt of fruit trees, and dislodges, therefore, the insects but very imperfectly, without removing, in the least, their eggs, that stick upon the under surface of the leaf. This Cap is also used for watering Pines. The Cap i, has smaller perforations than the above, and as it throws the fluid in a light and gentle moisture, almost like a dew-fall, is par- ticularly eligible for sprinkling Forcing Houses of all descriptions, and Trees in bloom, and not only clears the latter of insects, but deposits the water in such a gentle manner upon the leaves, that, if it be applied at night, preserves the plant moist until the next morning, materially tends to its nourishment and health, and prevents the formation of animaleulae, which breed rapidly in the dry but perish by moisture. The Practical Gardener is aware of this, and takes care, during warm weather, to supply his trees with moisture while their buds are forming and before the blossom expands. This Cap is used also for washing the leaves of trees, plants, and vegeta- bles when frost-nipped in the cold nights that often prevail during the spring; it should of course be done before sun-rise. The Cap c is used for extinguishing fire and for washing the coarser sorts of trees, as Pears, Plumbs, Cherries, &c. against walls, and for general w atering in lieu of the Barrow Engine, and in this way can be applied more elficaciously than the latter, as it may be brought into immediate contact with the plant, or applied in any direction that may be desirable, which the Barrow Engine cannot, on account of the impracticability of bringing it over the beds. By the application of the Syringe there is no useless expenditure of water, and it is generally found that two, or at most three charges is suflicient for a large tree. The Fumigating canister d, is used in the following manner. Hav- ing fitted the brass tube to the side opening, unscrew the top, take