A NEW BAIT TRAP FOR NOCTUID MOTHS

1931 ◽  
Vol 63 (7) ◽  
pp. 149-150
Author(s):  
A. A. Wood
Keyword(s):  
Night Work ◽  
Bait Trap ◽  
The Past ◽  
Past Winter

Previous to the present year noctuid moths were collected for breeding purposes and flight records, in various ways, entailing long hours spent in the field at night. The methods employed were variations of the old practice of “sugaring” and collecting from bloom. Fairly good results were obtained by systematic night collections, but it seemed desirable to devise a method whereby material might be secured in sufiicient quantities without so much night work. During the past winter the trap under discussion was designed and constructed as an experiment towards simplifying moth collections and flight records.

scholarly journals IX.—Researches on Heat. Third Series. § 1. On the unequally Polarizable Nature of different kinds of Heat. § 2. On the Depolarization of Heat. §; 3. On the Refrangibility of Heat

1839 ◽  
Vol 14 (1) ◽  
pp. 176-207
Author(s):  
James D. Forbes
Keyword(s):  
Refractive Indices ◽  
The Third ◽  
The Past ◽  
Made In ◽  
Past Winter

1. The following paper is divided into three sections, containing three distinct yet intimately connected investigations. The two first on the Polarizability and Depolarization of Heat have arisen immediately out of the train of investigation contained in my two former papers, and the researches of others to which they gave rise. The third is on the Refrangibility of Heat, a point of the highest importance for theory.2. The experiments on which these investigations are based have been performed almost exclusively during the past winter. Part of the experiments on Depolarization were, however, made in the winter 1836-7. The mode adopted for trying Refractive Indices I had long ago contemplated. It was not, however, put in practice until January last.

The Solubility of Carbonate of Lime in Fresh and Sea Water

1890 ◽  
Vol 16 ◽  
pp. 319-324 ◽  
Author(s):  
W. S. Anderson
Keyword(s):  
Sea Water ◽  
The Past ◽  
Marine Station ◽  
Work Done ◽  
Past Winter

At Dr Murray's request, I have during the past winter continued the investigation of Messrs Irvine and Young on the solubility of carbonate of lime in its different forms in sea water (the results of which they submitted to this Society in May 1888); and the following notes of the work done and the results obtained by me, under Mr Irvine's guidance, in the laboratory of the Marine Station, Granton, may be of interest.

scholarly journals Further observations on the spectrum of the night sky

1923 ◽  
Vol 103 (720) ◽  
pp. 45-52 ◽  
Keyword(s):  
Camera Lens ◽  
The Past ◽  
Light Gathering Power ◽  
Identical Construction ◽  
Light Gathering ◽  
Minimum Number ◽  
Night Sky ◽  
Collimating Lens ◽  
Past Winter

During the past winter I have continued my studies on the spectrum of the night sky, and the connected subject of the auroral spectrum. The present paper reports the results obtained. The spectrographs used in this work are two of nearly identical construction. In designing them the paramount consideration was to obtain the greatest possible light gathering power, all other considerations being kept subordinate to this. It was accordingly decided to use the minimum number of optical pieces—one prism, one collimating lens, one camera lens, neither of the latter to be achromatic.

scholarly journals II. Note on some winter thermometric observations in the Alps

1874 ◽  
Vol 22 (148-155) ◽  
pp. 317-328 ◽  
Keyword(s):  
Winter Climate ◽  
Past Season ◽  
The Past ◽  
Summer Climate ◽  
Heated Air ◽  
The Alps ◽  
The Village ◽  
Solar Rays ◽  
Past Winter

During the past winter, I spent a. fortnight at the village of Davos, Canton Graubünden, Switzerland, and had thus an opportunity of experiencing some of the remarkable peculiarities of the climate of the elevated valley (the Prättigau) in which Davos is situated. The village has of late acquired considerable repute as a climatic sanitarium for persons suffering from diseases of the chest. So rapidly has its reputa­tion grown, that while in the winter of 1865—66 only eight patients resided there, during the past season upwards of three hundred have wintered in the valley. The summer climate of Davos is very similar to that of Pontresina and St. Moritz, in the neighbouring high valley of the Engadin—cool and rather windy; but so soon as the Prättigau and surrounding mountains become thickly and, for the winter, permanently covered with snow, which usually happens in November, a new set of conditions come into play and the winter climate becomes exceedingly remarkable. The sky is, as a-rule, cloudless or nearly so; and, as the solar rays, though very powerful, are incompetent to melt the snow, they have little effect upon the temperature, either of the valley or its enclosing mountains ; conse­quently there are no currents of heated air; and, as the valley is well sheltered from more general atmospheric movements, an almost uniform calm prevails until the snow melts in spring.

scholarly journals The Past Winter

Nature ◽  
1886 ◽  
Vol 34 (867) ◽  
pp. 124-125
Keyword(s):  
The Past ◽  
Past Winter

The New York Committee on Business Records

1945 ◽  
Vol 5 (1) ◽  
pp. 60-64
Author(s):  
Thomas C. Cochran
Keyword(s):  
New York ◽  
The Past ◽  
Past Winter

During the past winter the New York Committee on Business Records has dealt in a practical way with one group of the difficulties discussed by Arthur Cole in his article, “Business Manuscripts: A Pressing Problem.” This committee has sought to solve the problem by convincing executives that business records are of value not only to themselves but also to scholars, by advising businessmen how they may best arrange their records, and by learning under what conditions scholars may have access to business archives.

VI. Archæological Exploration in India, 1909–10

1911 ◽  
Vol 43 (1) ◽  
pp. 127-158
Author(s):  
J. H. Marshall
Keyword(s):  
The Past ◽  
Past Winter

THE excavations at Bhīṭā, near Allahabad, which I am about to describe, signalize a new departure in Indian Archaeology; for they mark the first occasion on which a serious effort has been made to explore the remains of an ancient Indian town, and the results attained from hem consequently deserve a somewhat more detailed description than would otherwise be given here. The site at Bhīṭā is far from being an extensive one, and the old town, of which even the name is uncertain, could never have been of any great importance, except perhaps from a military standpoint; yet in spite of this, and in spite, too, of the fact that the digging was confined to a very small part of it, the discoveries that have been made are full of archaeological interest, and serve to indicate very clearly what a rich harvest of finds may be expected when the sites of the great cities like Taxila, Pataliputra, and Vidiśā come to be systematically and thoroughly investigated, as I sincerely hope they will be in the course of the next decade. I myself had hoped to start on the exploration of the last-named city during the past winter, but owing to unforeseen difficulties raised by the Gwalior Darbar the project had to be abandoned, and at the last moment I was reluctantly compelled to fall back on the much inferior site at Bhīṭā, where it was manifest from the outset that, whatever other discoveries might be brought to light, little or nothing of a highly artistic order or of great historical value need be looked for.

scholarly journals ENTOMOLOGY BY THE ELECTRIC LAMP

1885 ◽  
Vol 17 (6) ◽  
pp. 117-119 ◽  
Author(s):  
E. W. Claypole
Keyword(s):  
Natural History ◽  
Natural History Society ◽  
The Past ◽  
Electric Lamp ◽  
Past Winter

During the past winter an installation of about 100 arc-lamps was established at Akron, O. They haug as usual over the middle of the street. Early in the summer it was evident that they would afford a fine huntinggorund for the entomologist, and accordingly several members of the Natural History society of Akron resolved to turn the opportunity to account by making collections of the insects attracted by the light and compariirg and noting the results.

Sign in / Sign up

Export Citation Format

Share Document