Periodicals Books

In my presidential address, which I had the pleasure of reading before this society at our first meeting this year, I called attention, somewhat hurriedly, to the results of a few of my experiments on induction, and at the same time expressed a hope that at a future date I might be able to bring them more prominently before you. That date has now arrived, and my endeavor this evening will be to... more...

"TRY, TRY AGAIN." T is a true story that I am going to tell you now. It is about a little boy whose name was William Ross. Having had a present of a pencil, he thought he would make use of it by trying to draw.His first attempts were poor enough. One day, when he had been playing ball with a young friend, he stopped, and, taking out his pencil, began to draw a picture on the wall. "What do... more...

COCOS PYNAERTI. This is an acquisition to the dwarf growing palms, and a graceful table plant. It first appeared in the nurseries of M. Pynaert, Ghent, and is evidently a form of C. Weddelliana, having similar character, though, as shown by the accompanying illustration, it is quite distinct. The leaves are gracefully arched, the pinnules rather broader than in the type, more closely arranged, and of a... more...

STEAM ENGINE VALVES. By THOMAS HAWLEY. In considering the slide valve in its simple form with or without lap, we find there are certain limitations to its use as a valve that would give the best results. The limitation of most importance is that its construction will not allow of the proper cut off to obtain all the benefits of expansion without hindering the perfect action of the valve in other... more...

RENAISSANCE PANELS FROM PERUGIA. The carved walnut panels from the choir stalls of the Church of San Pietro de' Casinense in Perugia, designed by Stefano da Bergamo in 1535, which are given as illustrations in this number, are excellent examples of the ornament of the later period of the Italian Renaissance. This form of ornament was first used in flat painted panels upon pilasters, such as the... more...

MIXED NOTIONS. No. 1.—BI-METALLISM. Scene—A Railway-carriage in a suburban morning train to London. There are four Passengers, two of whom are well-informed men, while the third is an inquirer, and the fourth an average man. They travel up to London together every morning by the same train. The two Well-informed Men and the Average Man are City men; the Inquirer is a young Solicitor. They have just... more...

ROMAN REMAINS AT LEICESTER, ENGLAND. The Roman tessellated pavement in Jewry Wall Street, Leicester, discovered in the year 1832, is well known to archaeologists; it has also been known as difficult of access, and hardly to be seen in a dark cellar, and, in fact, it has not been seen or visited, except by very few persons. Some time ago the Town Council resolved to purchase the house and premises, with... more...

TURPENTINE AND ITS PRODUCTS. By Edward Davies, F.C.S., F.I.C. In treating this subject it is necessary to limit it within comparatively narrow bounds, for bodies of the turpentine class are exceedingly numerous and not well understood. In this definite class turpentine means the exudation from various trees of the natural order Coniferæ, consisting of a hydrocarbon, CH, and a resin. The constitution... more...

UP TO DATE. For the first ten months of our current fiscal year our expenditures have been $53,000 less than for the corresponding ten months three years ago. They are $37,000 less than for the first ten months of the next year. They are $13,000 less than last year. These facts indicate the severity of our retrenchments. We have most earnestly hoped for such a large increase of benefactions as would... more...

MEMOIR OF SIR HUMPHRY DAVY, BART. The present may be regarded as a chemical age; for so extensive, rapid, and important have been the late acquisitions in the science of chemistry, that we may almost claim it as the exclusive discovery of our own times. The popularity and high estimation in which it is held may be ascribed to three causes: 1. The satisfaction which is afforded by its results. 2. Its... more...