And if there are any prints which contain certain fatty material or protein material, the iodine fumes simply discolor it to a sort of brownish color.
Wherever there is any salt material, it will discolor it, much more so than the rest of the object, and show exactly where the latent prints have been developed.
And it will immediately start to discolor the specimen.
To discolor by the application of foreign matter; to make foul; to spot; as, to stain the hand with dye; armor stained with blood.
There are also, however, several volatile oils, which do not discolor the iodine solution.
In place of iodine, Rudolph Eck recommends a very dilute alcoholic iodine solution, which is not discolored by oils of turpentine, while other oils discolor it.
Put the pan on the shelf of the oven to cook first the vegetables, but do not let it remain there long enough to discolor or change their shape; then remove it to the bottom of the oven, baste it well, and finish the cooking.
For fruit jellies it is well to use a china mold, or else coat the tin one with clear jelly (see page 323), as tin is likely to discolor it.
This fixing bath will not discolor until after long usage, and both clears up the shadows of the negative and hardens the film at the same time.
Bases, like acids, are good or bad according to their use; if they come in contact with cloth, they eat or discolor it, unless neutralized by an acid.
But the best test of an acid is by sight rather than by taste, because it has been found that an acid is able to discolor a plant substance called litmus.
If the fruit is to be pared, use a silver knife for the purpose, as steel is apt to discolor the fruit.
Iron utensils, although they are, when new, apt to discolor and impart a disagreeable flavor to food cooked in them, are not objectionable from a health standpoint, if kept clean and free from rust.
Use a porcelain-lined kettle, for cooking, as an iron one will discolor it and injure its flavor.
Any time you say," he said, with ease, refusing to discolor his present delight with this miserable problem.
One day of it, like one drop of the other, will so affect and discolor the views, the aims, the desire of the mind, that it will thereafter remain forever dyed.
Plastic surfacing will not discolor or fade, even though exposed for a long period to the sun's rays.
But carpets do discolor or change in hue, because of infiltrated dust which is basically gray in color.
When wanted, warm a little of it; pour it upon the spots, and after it has been on them for a few minutes, scour it off with warm water and soap, as it is apt to discolor the boards when left too long on them.
This latter flower, whose superb scarlet corolla stains black, is employed by the Chinese married women, it is said, to discolor their teeth; but in the West Indies it sinks to even greater ignominy as a dauber for blacking shoes!
If clear stock is desired for the making of soup, only fresh meat and bones should be used and all material that will discolor the liquid in any way carefully avoided.
They should have no decayed places that might taint or discolor the soups, and they should be as crisp and solid as possible.
All paints used should be of good quality so that it will not come off easily todiscolor the hands or tongues of children who cannot resist the temptation of sticking everything possible into their mouths.
As metal is apt to discolor the dye, it is better to use a glass container.
Each rehandling will certainly discolor and perhaps break a good many of them, rendering them unsalable, if not worthless.
In this condition, when cooked, they retain their white appearance and do not discolor the soup.
They discolor so easily that, all things considered, about a pound is enough in a box, if we wish them to carry safely and retain their bright, fresh skin without tarnishing.
It oxidizes and thus helps make tight margins, and is very useful at cervical margins; generally discolors, but not always, and does not discolor the tooth unless a carious portion has been left, and then only discolors that portion.
As a lining it presents to dentin an amalgam of tin and mercury which does not discolor the dentin like ordinary amalgam, and helps do away with local currents on the filling, which is one cause of amalgam shrinkage in the mouth.
These fish constantly employ the contents of their "ink bags" to discolor the water, when in the presence of enemies, in order to facilitate their escape from them.
When cauliflower is cooked for salad, care must be taken not to cook it so long as to discolor it or cause it to fall to pieces.
This is a matter that should not be overlooked, for if the salad is allowed to stand very long after the nuts are added they will discolor the dressing and cause the salad to become dark and gray looking.
When cake dough is stirred in an aluminum dish, the sides usually become darkened and are liable to discolor the mixture.
This salad should be carefully combined just before serving, since the beets will discolor the rest of the ingredients if it is allowed to stand any length of time.
In preparing these skins for bookbinders, great care has to be taken to extract as much of the natural oil as possible, as this is apt to discolor the gold leaf decorations put on by the artistic binder.
Many persons think that this ground wood, which is merely spruce ground very fine into pulp, is used in book papers; but if it were, the paper would not last long, and would almost immediately discolor on exposure to light and air.
