Our website is made possible by displaying online advertisements to our visitors.
Please consider supporting us by disabling your ad blocker.

Download links will be available after you disable the ad blocker and reload the page.
Showing: 11-20 results of 1453

by Various
THE HOUSE-SPARROW. The English house-sparrow, a pert, daring little bird, which is seen in crowds in almost all cities of the Northern United States, was first brought to this country about twenty years ago. It is said the first specimens were liberated in Portland, Maine, where they immediately made themselves at home, and began nest-building and worm-catching as eagerly as when in their native air. Others were soon brought to New York city,... more...

by Various
THE ROSE-BREASTED GROSBEAK.   HIS is an American bird, and has been described under various names by various authors. It is found in the lower parts of Pennsylvania, in the state of New York, and in New England, particularly in autumn, when the berries of the sour gum are ripe, on the kernels of which it eagerly feeds. As a singer it has few superiors. It frequently sings at night, and even all night, the notes being extremely clear and... more...

The Ability to communicate ideas from one individual to another," said a professor of sociology to his class, "is the principal distinction between human beings and their brute forbears. The increase and refinement of this ability to communicate is an index of the degree of civilization of a people. The more civilized a people, the more perfect their ability to communicate, especially under difficulties and in emergencies." The delivery of his... more...

President's Greeting, Annual Meeting, 1915. THOS. E. CASHMAN, PRESIDENT. This is the forty-ninth annual meeting of the Minnesota State Horticultural Society. Nearly half a century has elapsed since that little band of pioneers met in Rochester and organized that they might work out a problem that had proven too difficult for any of them to handle single handed and alone. Those men were all anxious to raise at least sufficient fruit for... more...

~With Discussion by Messrs. Allen Hazen, George A. Johnson,Morris Knowles, George C. Whipple, F. F. Longley, and E. D. Hardy.~ The Washington filtration plant has already been fully described.[2] At the time that paper was written (November, 1906), the filtration plant had been in operation for only about 1 year. It has now been in continuous operation for 5 years, and many data on the cost, efficiency, and methods of operation, have accumulated... more...


TESTS OF CREOSOTED TIMBER. By W. B. Gregory, M. Am. Soc. C. E. During the last few years a quantity of literature has appeared in which the treatment of timber by preservatives has been discussed. The properties of timber, both treated and untreated, have been determined by the Forest Service, United States Department of Agriculture, and through its researches valuable knowledge has come to engineers who have to deal with the design of... more...

With Discussion by Messrs. William Arthur Payne, and Eugene Klapp. A private yacht pier, built near Glen Cove, Long Island, has brought out a few points which may be of interest. It is an example of a small engineering structure, which, though of no great moment in itself, illustrates the adoption of means to an end that may be capable of very great extension. The problem, as submitted to the writer, was to construct a yacht landing at East... more...

In the location of new railways and the improvement of lines already in operation, it is now well recognized that large economies can be effected by the careful study of train resistance due to grades and alignment, distributing this resistance so as to secure a minimum cost of operation with the means available for construction. While engaged in such studies some years ago, the attention of the writer was attracted by the fact that the usual... more...

by Various
FINAL REPORT OF SPECIAL COMMITTEE ON RAIL SECTIONS. Your Special Committee on Steel Rails, since their appointment in 1902, have held numerous meetings, not only of their own body, but also in conference with Committees representing other Societies and the steel rail makers. The results of their deliberations have been presented to the Society in their reports presented on— January 21st, 1903 " 18th, 1905 " 17th,... more...

Introduction. The mine disaster, which occurred at Cherry, Ill., on November 13th, 1909, when 527 men were in the mine, resulting in the entombment of 330 men, of whom 310 were killed, has again focused public attention on the frequent recurrence of such disasters and their appalling consequences. Interest in the possible prevention of such disasters, and the possible means of combating subsequent mine fires and rescuing the imprisoned miners,... more...