Memoirs and Proceedings of the Manchester Literary & Philosophical SocietyThe Society, 1895 |
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Страница 33
... branches of somewhat larger size ; but in all , the larger the twig , the larger also is the central cellular tissue in varying degrees and in different types . This is a true medulla , which generally exhibits its maximum diameter only ...
... branches of somewhat larger size ; but in all , the larger the twig , the larger also is the central cellular tissue in varying degrees and in different types . This is a true medulla , which generally exhibits its maximum diameter only ...
Страница 35
... branches of various dimensions , and which I regarded as representing what we should have found if we could have made such a series of sections of the same living branch at various parts of its length . But my friendly opponents denied ...
... branches of various dimensions , and which I regarded as representing what we should have found if we could have made such a series of sections of the same living branch at various parts of its length . But my friendly opponents denied ...
Страница 36
... branches . It is to the ascending series of these dichotomies that the Lepidodendra owe their characteristic structure and modes of development . The normal form of a transverse section of an ordinary branch is cylindrical , as is also ...
... branches . It is to the ascending series of these dichotomies that the Lepidodendra owe their characteristic structure and modes of development . The normal form of a transverse section of an ordinary branch is cylindrical , as is also ...
Страница 37
... branch immediately below a dichotomy , the basis of bifurcation . Yet higher there occurs sooner or later a second dichotomy at the summit of each of the two smaller branches produced by the first one . What takes place in this is a ...
... branch immediately below a dichotomy , the basis of bifurcation . Yet higher there occurs sooner or later a second dichotomy at the summit of each of the two smaller branches produced by the first one . What takes place in this is a ...
Страница 38
... branches , and that a similar diminution occurs in the leaves with which the cortex is clothed . It must be remembered that ... branch , carrying with it a small portion of the medulla . As it does so this unsymmetrical segment gradually ...
... branches , and that a similar diminution occurs in the leaves with which the cortex is clothed . It must be remembered that ... branch , carrying with it a small portion of the medulla . As it does so this unsymmetrical segment gradually ...
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acid affinity April ARTHUR SCHUSTER atomic weights B.Sc back E.M.F. Bode's law Bowfell branch Carboniferous carboxyl cells central cylinder Chair chemical chemists contains cortex crescents diameter electric electromotive force elements equal dichotomy exhibited experiments fossil function groups growth heat HENRY WILDE hydrogen increase James Cockle Joule Kaloxylon Hookeri layer leaf leaf-traces Lepidodendron magnetic Manchester measured medulla members were voted MEMOIRS AND PROCEEDINGS Mendeleeff Microscopical and Natural multiple proportions Natural History Section Neptune Newlands observed obtained ohms orbits Ordinary Meeting OSBORNE REYNOLDS Owens College paper parenchyma periderm period periphery permanency of form Phil phloem planetary distances plants President primary cylinder Primary Xylem cylinder Professor radius vector resistance root SCHUSTER secondary vascular bundles Secondary Xylem shew shown Society specimens sporophyte stele stem structure surface temperature thermometer tissue tracheids transverse sections twigs Type of Lepidodendron vascular bundles Williamson
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Страница 162 - THE BODY of BENJAMIN FRANKLIN, Printer, (like the cover of an old book, its contents torn out, and stript of its lettering and gilding) lies here food for worms ; yet the work itself shall not be lost, for it will (as he believed) appear once more in a new and more beautiful edition, corrected and amended by THE AUTHOR.
Страница 104 - My bane and antidote, are both before me. This in a moment brings me to an end; But this informs me I shall never die. The soul, secured in her existence, smiles At the drawn dagger, and defies its point. The stars shall fade away, the sun himself Grow dim with age, and Nature sink in years, But thou shalt flourish in immortal youth, Unhurt amidst the war of elements, The wreck of matter, and the crush of worlds.
Страница 128 - I asserted — and I repeat — that a man has no reason to be ashamed of having an ape for his grandfather. If there were an ancestor whom I should feel shame in recalling, it would rather be a man — a man of restless and versatile intellect — who, not content with an equivocal...
Страница 127 - I repeat, that a man has no reason to be ashamed of having an ape for his grandfather. If there were an ancestor whom I should feel shame in recalling, it would be a man, a man of restless and versatile intellect, who, not content with an equivocal success in his own sphere of activity, plunges into scientific questions with which he has no real acquaintance...
Страница 154 - Chagrined a little that we have been hitherto able to produce nothing in this way of use to mankind ; and the hot weather coming on, when electrical experiments are not so agreeable, it is proposed to put an end to them for this season somewhat humorously in a party of pleasure on the banks of Skuylkil. Spirits, at the same time, are to be fired by a spark sent from side to side through the river, without any other conductor than the water ; an experiment which we some time since performed to the...
Страница 230 - Now the most startling result of Faraday's law Is perhaps this. If we accept the hypothesis that the elementary substances are composed of atoms, we cannot avoid concluding that electricity also, positive as well as negative, is divided into definite elementary portions, which behave like atoms of electricity.
Страница 152 - If any danger to the man should be apprehended (though I think there would be none), let him stand on the floor of his box, and now and then bring near to the rod the loop of a wire that has one end fastened to the leads, he holding it by a wax handle ; so the sparks, if the rod is electrified, will strike from the rod to the wire, and not affect him.
Страница 152 - ... feet, pointed very sharp at the end. If the electrical stand be kept clean and dry, a man standing on it, when such clouds are passing low, might be electrified and afford sparks, the rod drawing fire to him from a cloud.
Страница 155 - I applied the other end of my rod to the prime conductor, and they all dropped together. When they got up, they all declared they had not felt any stroke, and wondered how they came to fall ; nor did any of them either hear the crack or see the light of it.
Страница 157 - easily conceive that he shall otherwise always retain the '• same quantity of matter ; though we should suppose him " made of sulphur constantly flaming. The action of fire " only separates the particles of matter, it does not annihilate " them. Water, by heat raised in vapour, returns to the •'earth in rain ; and if we could collect all the particles of " burning matter that go off in smoke, perhaps they might, "with the ashes, weigh as much as the body before it was "fired : And if we could...