Scientific American magazine Vol 2. No. 3 Oct 10 1846 / The Advocate of Industry and Journal of Scientific, / Mechanical and Other Improvements

by Various

OF MODELS.

(Continued from No. 2.)

Sec. 26. The law requires that the inventor shall deliver a model of his invention or improvement when the same admits of a model. The model should he neatly made, and as small as a distinct representation of the machine or improvement, and its characteristic properties, will admit; the name of the inventor should be printed or engraved upon, or fixed to it, in a durable manner. Models forwarded without a name, cannot be entered on record, and therefore liable to be lost or mislaid.

Sec. 27. When the invention is of 'a composition of matter,' the law requires that the application be accompanied with specimens of ingredients, and of the composition of matter, sufficient in quantity for the purpose of experiment.