This, of course, is just bromide emulsion on paper, and if, as I suspect from its color, it contains a trace of iodide, why, so do most commercial plates.

These have been celebrated as a cathartic: they operate very slowly, and for the most part disorder the bowels, especially when given in substance; triturated with aromatic distilled waters, they form an emulsion less offensive, yet inferior in efficacy to more common purgatives.

The plain emulsion plate showed only the high lights of the picture, after prolonged development.

Fine paper well sized with an insoluble size and coated with a sensitive emulsion is, we believe, the very best material to use in the roller slide; and such a paper might be made in long lengths at a very low price, a coating machine similar to that constructed for use in making carbon tissue being employed.

He seemed a salacious, gay crony compared with the Christian apologists who lived in the same centurythe soporific Minucius Felix, a pseudo-classicist, pouring forth the still thick emulsions of Cicero into his Octavius; nay, even Tertullianwhom he perhaps preserved for his Aldine edition, more than for the work itself.

The yolk contains all the fatty matter, and this, with a modified form of albumen called vitellin, forms a kind of yellow emulsion.