Proceedings of the Royal Irish Academy

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Includes also Minutes of [the] Proceedings, and Report of [the] President and Council for the year (beginning 1965/66 called Annual report).
 

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Page 224 - ... sought out, or indeed caught hold of, and compelled into its service. It surrounds them, as a spider its prey, with a fibrous net of narrow meshes, which is gradually converted into an impenetrable covering ; but, whilst the spider sucks its prey and leaves it lying dead, the fungus incites the algae found in its net to more rapid activity — nay, to more vigorous increase.
Page 134 - After entering the air-lock, as the pressure increases, the first sensation experienced is one of great heat. As the pressure is still further increased a pain is felt in the ear, arising from the abnormal pressure upon the ear-drum. The tubes extending from the back of the mouth to the bony cavities over which this membrane is stretched, are so very minute that...
Page 409 - Society has long been a matter of regret to its officers and it is with great satisfaction that we are able to announce that, through the courtesy of Dr.
Page 135 - ... to admit the compressed air within the cavities of the ears. It frequently occurs, however, from some abnormal condition of these tubes, as when inflamed by a cold in the head, that neither of these remedies will relieve the pain. To continue the admission of compressed air into the lock under such circumstances would intensify the suffering, and possibly rupture the tympanum ; therefore the...
Page 162 - ... through a small angle proportional to the sine of the angle between the other two, the body after the last displacement will' occupy the same position that it did before the first.
Page 224 - As the result of my researches all these growths [Lichens] are not simple plants, not individuals in the ordinary sense of the word; they are rather colonies, which consist of hundreds and thousands of individuals, of which, however, one alone plays the master, whilst the rest, in perpetual captivity, prepare the nutriment for themselves and their master.
Page 99 - ... of the Canadian Eozoon present connecting plates and columns not explicable on any concretionary hypothesis. If, however, they are unable to explain the lamellar structure alone, as it appeared to Logan in 1859, is it not rash to attempt to explain it away now, when certain minute internal structures, corresponding to what might have been expected on the hypothesis of its organic origin, are added to it ? If I affirm that a certain mass is the trunk of a fossil tree, and another asserts that...
Page 39 - Thus the same nerve tubule may be able to transmit along it vibrations differing in character, and hence giving rise to different sensations ; and consequently the same nerve tubule may, in its normal condition, transmit the wave which produces the idea of simple contact, or that which produces the idea of heat ; or, again, the same nerve...
Page 386 - Leclanche cells does not in the least defied the needle of our highly sensitive galvanometer. Nor does light, so far as our experiments have yet gone, diminish the resistance of this modification. We have, on the other hand, succeeded in obtaining bars of granular selenium through which the current of one Leclanche cell causes a very considerable deflection of the needle. This form is, we find, in its electric resistance almost unaffected by light. Between these two forms of granular selenium —...

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