parts of the specification of the patent granted to the said Richard Whytock, on the 8th day of September, 1832, yet this was only for the purpose of illustrating our invention, and such reference is not meant by us to be understood as forming any part of our invention, beyond illustration.[Inrolled in the Rolls Chapel Office, September, 1839.]

TO JOHN HEATON HALL, of Doncaster, in the county of York, chemist, for improvements in preserving and rendering woollen and other fabrics and leather waterproof.-[Sealed 5th December, 1839.]

THIS invention consists in applying certain chemical materials, in the manner hereafter described, to such articles as are required to be preserved or water-proofed.

When articles require to be water-proofed, dissolve two ounces of pulverized alum in one pint of distilled water; then take one ounce of the dry white lead of commerce, and rub it well down in a pint of pure water; and when well mixed, add the two solutions together, and the undissolved matter subsides; after which, draw off the supernatant liquid, and pass the cloth, or other article to be preserved, through it. Or the following chemical combination may be employed:

One ounce of dry white lead of commerce, one ounce of pounded alum,-rub the white lead down in half a pint of water, and dissolve the alum in another half-pint, and add thereto two fluid drachms of acetic acid,—then mix the white lead and water with the dissolved alum and acetic acid; then allow the precipitate to subside, and draw off the supernatant liquor, and pass the cloth or other article through it directly.

After the materials to be preserved, have been submitted to either of the above preparations, they must be passed through the following solution, viz., half a pound of quick lime mixed with one gallon and a half of distilled water; and when this has been done, and the fabric or leather partially dried, it must be pressed through a solution made of two ounces of clean picked Irish moss, boiled in three gallons of pure water, and boiled down until the quantity becomes reduced to two gallons; this must be strained through a fine flannel bag, and two gallons more of pure water added.

When the fabric has been passed through the above solution, it must be pressed, in order to prevent too much of the mucilaginous matter from remaining, but only a sufficient quantity to fix the water-proofing material.

The solution, for preserving fabrics and leather, is made in the following manner :-Take one ounce and two drachms of camphor, eight ounces of crude arsenic reduced to powder, eight ounces of white soap, three ounces of salt of tartar, and one ounce of prepared chalk pulverised.

In order to mix these substances, cut the soap into slices and smelt it with a little water, in a pot, over a slow fire, stirring it frequently with a wooden spoon; and, when melted, add the salt of tartar, and pulverised chalk; then take it off the fire and put in the arsenic: and add, lastly, the camphor, in the state of a fine powder.

In order to make this preparation sufficiently liquid for use, one gallon of pure rain, or distilled water, must be added.

The patentee says, that he sometimes mixes one ounce of the preserving preparation with one gallon of water, and adds thereto one pint of either of the water-proofing solutions above mentioned; and by submitting the fabric, or leather, to the mixed solution, he water-proofs and preserves at the same time.

When the first preparation is used in its simple state, it is not necessary to use the lime-water; and when operating on thin fabrics, they should be partially dried before passing them through the solution of lime.

In conclusion, the patentee states, that although he has been particular in stating exact quantities for the above preparations, yet he does not confine himself thereto; and when preserving leather, or fabrics, the camphor may be omitted, if the smell is objected to; and also, if fabrics of extra thickness are to be operated upon, the mixtures must be made stronger than those above given.

After the fabrics have been submitted to the abovementioned preparations, they are to be dressed and pressed, for the market, in the ordinary manner, according to the particular fabric that has been operated upon.-[Inrolled in the Inrolment Office, June, 1840.]

TO WILLIAM STONE, of Winsley, in the parish of Bradford, in the county of Wilts, gent., for his invention of improvements in the manufacture of wine.-[Sealed 21st January, 1840.]

THIS invention is for making wine from the stems or stalks of rhubarb; and the method pursued by the patentee, in manufacturing the same, is described in the following manner:-The green stalks or stems of the rhubarb having attained their full size, (which will generally be about the month of May,) they are plucked, and the leaves stripped off, and thrown away as useless; they are then bruised in a mortar, and reduced to a pulp, which is put into a vat or tub, adding to every five pounds of pulp one gallon of cold spring water. This is allowed to remain for three days,

taking care to stir it four times a day; on the fourth day the pulp should be pressed in the ordinary manner, and the liquor strained off, and placed in an open tub or vat; and to every gallon of the liquor add three pounds of white loaf sugar, stirring it until the sugar becomes perfectly dissolved. It should then be left alone, and in five or six days the fermentation will begin to subside, and a crust or head formed; this should either be skimmed off or the liquor drawn from it, just when the head begins to crack or separate; after which, it is to be put into the cask, but not stopped down; and if it begins to ferment in the cask, it must be racked off into another, and, in about a fortnight, it may be stopped down and allowed to remain until the following March, when it may be again racked, and the cask stopped down; but, if from any slight fermentation, the wine should have lost any of its sweetness, a sufficient quantity of loaf sugar should be added to sweeten it; after which, the cask must be again stopped, and care taken that it is always full, and in a month or six weeks the wine will be fit to bottle, and in the summer to drink; but the wine will be considerably improved by being kept a year or two in the cask.

The plant, about the latter end of August, produces another crop, and a further quantity of wine may be made by pursuing the same process.

The patentee says, in conclusion,-"Having now described the nature of my invention, I would remark, that although I have minutely described the process, as pursued by me, yet I do not intend to confine myself to the precise means. And I have found, that by using the before-described process, and applying one pound and a half of white loaf sugar, instead of three pounds, to every gallon of liquor, I produce a very agreeable wine; and by using two pounds of sugar, instead of three, and employing the same process, a very good wine will be the result; there

fore I do not confine myself to the exact quantity of sugar, or other of the ingredients; but I claim the mode, hereinbefore described, of manufacturing wine by the application of the product from the stems or stalks of the plant called rhubarb, as above described.─[Inrolled in the Inrolment Office, July, 1840.]

Scientific Adjudication.

WOODCROFT'S PETITION FOR THE EXTENSION OF A PATENT RIGHT. (Continued from page 214, Vol. XVIII.)

Is that done purposely ?—Yes, that is caused by more of the threads of the warp being thrown up.

Could such a shawl have been printed to have an effect like that in the old mode of printing upon silk ?-I suppose not, but I am not aware of what is meant by the old mode of printing.

I mean before Mr. Bennett Woodcroft's process, could that have been printed upon silk, could it have had an effect as fine as it has, being printed upon yarns?-I think not, but I have not tried. Here is the same bouquet of flowers at the other side. I do not know whether one is more perfect than the other.

Lord Brougham: Is that printed by the same process?—I believe it is done by Mr. Woodcroft.

Mr. Justice Erskine: Is that French or English ?-English; my own manufacture. I do not present it as any thing very splendid, but as one that I laid aside to bring with me.

Mr. Teed: What effect would the throwing open the patent produce upon the silk trade?—I should give there my opinion. My opinion is, that it would open a very important era in the trade, and that is very desirable. When it first commenced, it was in a comparatively imperfect state, as this first pattern will manifestly shew; and it is my opinion that it should be worked by persons who have devoted a certain portion of attention to fancy goods; that they should devote skill and capital to bring it to perfection, and of course, if it were thrown open to general competition, (this is my opinion) persons would not be induced to expend skill and capital upon it. This perfect shawl has several other small bouquets upon it, but the blocks alone for that cost, I think, nearly £45. I merely speak of this as an illustration, but other blocks of course cost money; a good deal must be expended in bringing this thing to perfection, and unless there is something like protection, persons will not be induced to devote their skill and capital to this object.

It will let in cheaper and inferior descriptions of goods ?—Yes, the French