Origin of Blue-tinted Paper.

The origin of blue-tinted paper came about by a mere slip of the hand. The wife of William East, an English paper-maker, accidentally let a blue bag fall into one of the vats of pulp. The workmen were astonished when they saw the peculiar color of the paper, while Mr. East was highly incensed over what he considered a grave pecuniary loss. His wife was so much frightened that she would not confess her agency in the matter. After storing the damaged paper for four years, Mr. East sent it to his agent at London, with instructions to sell it for what it would bring. The paper was accepted as a "purposed novelty," and was disposed of at quite an advance over the market price. Mr. East was astonished at receiving an order from his agent for another large invoice of the paper. He was without the secret, and found himself in a dilemma. Upon mentioning it to his wife, she told him about the accident. He kept the secret, and the demand for the novel tint far exceeded his ability to supply it.

Following His Nose.

While Marshall Jewell was Minister to Russia, he found out, by the use of his nose, the secret of making Russia leather. Instead of using tallow and grease in the dressings of skins, the Russians employed birch-bark tar. By careful inquiry, and literally following his nose, during a visit to one of their large tanneries, he found the compound in a mammoth kettle, ready for use. He reported his discovery, and the result is that genuine Russian leather goods are now made in America.

Discovery of Composition for Printing-Rollers.

The composition of which printing-rollers are made was discovered by a Salopian printer. Not being able to find the pelt-ball, he inked the type with a piece of soft glue which had fallen out of a glue pot. It was such an excellent substitute that, after mixing molasses with the glue, to give the mass proper consistency, the old pelt-ball was entirely discarded.

Mezzotinting.

This art was suggested by the simple accident of the gun-barrel of a sentry becoming rusted with dew.

Whitening Sugar.

The process of whitening sugar was discovered in a curious way. A hen that had gone through a clay puddle went with her muddy feet into a sugar house, leaving her tracks on a pile of sugar. It was noticed that wherever her tracks were the sugar was whitened. Experiments were instituted, and the result was that wet clay came to be used in refining sugar.