Prisms and lenses of collodion filled with carbonic acid and hydrogen gas have been made, and their action on the wave surface photographed.
When the sound wave strikes the collodion surface, it breaks up into two components, one reflected back into the air, the other transmitted down through the carbonic acid.
An examination of the series shows that the reflected wave in air has moved farther from the collodion film than the transmitted wave, which, as a matter of fact, has been flattened out into a hyperboloid.
The perchloride of iron should be added gradually and with care, otherwise such a quantity of heat will be generated as to cause the collodion to boil.
The Antwerp journal states that perchloride of iron combined with collodion is a good hæmostatic in the case of wounds, the bites of leeches, &c.
The setting of the collodion is hastened by the use of a fan, so that the air is kept in motion, and the patient should not be allowed to recover from the anæsthetic until the dressing is quite firm and hard.
In applying the above dressing, the shrinking incident to the drying of the collodion must not be overlooked, and the gauze layers must be loosely applied, as they would otherwise become too tight.
The collodion capsule permitted the fluids of the body to enter and provide food for the bacilli, but prevented the admission of the leucocytes to attack and destroy them.
He took a culture of bovine bacilli, which were entirely harmless to fowls, and, inclosing them in a collodion capsule, inserted them into the peritoneal cavity of a hen.
Ramie thus seemed likely to yield a cheap competitor in length of endurance to the collodion mantle, and results have justified this expectation.
Mare utilized collodion for the manufacture of a mantle, adding the necessary salts to the collodion before squeezing it into threads.
When the mantle was removed from the solution a thin film of solid collodion was left on it, and this could be burned away when required.
The structure of the cotton mantle differed widely from that obtained by the various collodion processes, and this alteration in structure was mainly responsible for the increase in life.
Perhaps the most interesting development of the Welsbach process was dependent upon the manufacture of filaments of soluble guncotton or collodion as in the production of artificial silk.
Collodion (Iodized with the Ammonio-Iodide of Silver).
Dagron, a Parisian photographer, suggested that the news be printed in large sheets of which microphotographs could be made and transferred to collodion positives which might then be stripped from the glass and would be very light.
This was done; thecollodion pellicles measuring about ten centimeters (four inches) square and containing about three thousand average messages.
In some extreme cases two or three coats will be needed, in which case allow the collodion to form a film before applying another coat.
Fred, left to himself, poured the collodion over the plate, and gently tilted it from side to side.
I don't believe you allowed the collodion time enough to set," was the answer.
Also, whether collodion portraits come within his patent, as it was understood it could only apply to the paper process?
Would you, or some of your photographic correspondents, oblige me by giving a short description of this tent, or any other form, so that I may be able to operate with collodion in the open air?
I should also feel obliged for any hints upon the use of collodion applied to glass, paper intervening; so that the paper may be afterwards removed from the glass, and used as a negative.
Gutta-percha only just preceded the substance of which collodion is made; the ether and chloroform, which are used in some methods, that of collodion.
In the manufacture of collodion or soluble cotton the finer qualities of cotton-waste are used and the acids used in the dipping tanks are much weaker.
The collodion or soluble gun-cotton is used for a variety of purposes.
Chenel has found this process the best for the analysis of the nitro- naphthalenes, and for impervious substances like collodion or gun-cotton.
Substances like collodion or gun-cotton must be very finely divided for successful treatment.
From the negative a silver print is made on albumen or gelatine or collodion paper.
In those days glass was not so cheap as at present, and all old or spoilt negatives were cleaned off and freshly prepared with collodion for further use.
Many years ago, in the old wet-collodion days, a well-known photographer was one day surprised by the visitation of a spirit.
The case was this: A gentleman sitter had been taken in the usual manner upon a collodion plate.
Collodion is applied to small aseptic wounds, to small-pox pustules, and occasionally to the end of the urethra in boys in order to prevent nocturnal incontinence.
Small balloons are manufactured from collodion by coating the interior of glass globes with the liquid; the film when dry is removed from the glass by applying suction to the mouth of the vessel.
Collodion and crystals of carbolic acid, taken in equal parts, are useful in relieving toothache due to the presence of a carious cavity.
The quality of collodion differs according to the proportions of alcohol and ether and the nature of the pyroxylin it contains.
Under the microscope, the film produced by collodion of good quality appears translucent and colourless.
To preserve collodion it should be kept cool and out of the action of the light; iodized collodion that has been discoloured by the development of free iodine may be purified by the immersion in it of a strip of silver foil.
Collodion is used in surgery since, when painted on the skin, it rapidly dries and covers the skin with a thin film which contracts as it dries and therefore affords both pressure and protection.
Similarly collodion may be impregnated with salicylic acid, carbolic acid, iodine and other substances.
The addition of cyanide of potassium to the sensitive collodion not only prevents its decomposition, but appears to add to its general good qualities.
The nitrate of silver bath, used for exciting collodion plates, is not available for exciting albumenized paper or any other purpose.
The so-called collodion cottons are nitrated celluloses, but of a lower degree of nitration (as a rule) than guncotton.
A characteristic difference between guncotton andcollodion cotton is the insolubility of the former in ether or alcohol or a mixture of these liquids.
Other products were soluble in the ether-alcohol mixture: they were less highly nitrated, and constituted the so-called collodion guncotton.
Would any of your correspondents kindly describe the manner in which the collodion film may be transferred to prepared copper plates?
Not only ought collodion to be "structureless," as MR.
This was said of a collodion emulsion, and I also find that it is the same when used in a gelatine emulsion.
The collodion process is still preferred for reproducing black and white designs, drawings, engravings, etc.
Warnerke was the first to call attention to this salt in the days of collodion emulsion; and I think he claimed for an emulsion prepared with it that the image would stand more forcing without fogging to gain any amount of intensity.
The use of the collodion is to furnish a delicate, homogeneous, adhesive, colorless layer in which the iodide may be deposited.
Gum-dammar solution (page 70) answers the purpose, but colourless collodionis better.
Collodion and zapon[96], on account of the expense, should only be used for small objects.
For the treatment of limestones on which there are remains of colours the use of a solution of shellac, gum-dammar, or collodion is recommended.
Collodion (Iodized with the Ammonio-Iodide of Silver)--J.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "collodion" in a variety of sentences. We hope that you will now be able to make sentences using this word.
