Philosophical Transactions, Giving Some Account of the Present Undertakings, Studies, and Labours of the Ingenious, in Many Considerable Parts of the WorldRoyal Society of London, 1820 |
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Página 8
... sufficient quantity of the fluid left to evaporate , ramifications are formed in every respect as distinct as those shown in a former Lecture , in the magnified drawing of a drop of human blood in the state of coagulation . From the ...
... sufficient quantity of the fluid left to evaporate , ramifications are formed in every respect as distinct as those shown in a former Lecture , in the magnified drawing of a drop of human blood in the state of coagulation . From the ...
Página 11
... sufficient novelty or importance to form the subject of the Bakerian Lecture ; but during the progress of the inquiry , some new views relative to the constitution of these gaseous mixtures , suggested themselves , and some properties ...
... sufficient novelty or importance to form the subject of the Bakerian Lecture ; but during the progress of the inquiry , some new views relative to the constitution of these gaseous mixtures , suggested themselves , and some properties ...
Página 24
... sufficient accuracy for practical purposes , that a gasometer containing 1000 cubical feet of oil gas , is adequate ... sufficiently near each other to allow of the union of the separate flames . 8. To ascertain the relative heating ...
... sufficient accuracy for practical purposes , that a gasometer containing 1000 cubical feet of oil gas , is adequate ... sufficiently near each other to allow of the union of the separate flames . 8. To ascertain the relative heating ...
Página 37
... sufficient to balance the elasticity of the full dilated lungs of this animal . Water was poured into the apparatus till the tube remained filled . The lungs , with this additional pressure , still continued much shrunk . As the height ...
... sufficient to balance the elasticity of the full dilated lungs of this animal . Water was poured into the apparatus till the tube remained filled . The lungs , with this additional pressure , still continued much shrunk . As the height ...
Página 42
... sufficient stability to resist this pressure without changing in any considerable degree its form and capacity at all parts , except at the base , or diaphragm ; which being muscular , pliant , and of a more extensive area 4,2 Dr ...
... sufficient stability to resist this pressure without changing in any considerable degree its form and capacity at all parts , except at the base , or diaphragm ; which being muscular , pliant , and of a more extensive area 4,2 Dr ...
Otras ediciones - Ver todo
Philosophical Transactions, Giving Some Account of the Present Undertakings ... Vista completa - 1845 |
Philosophical Transactions, Giving Some Account of the Present Undertakings ... Vista completa - 1723 |
Philosophical Transactions, Giving Some Account of the Present Undertakings ... Vista completa - 1855 |
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Página 313 - From the numerous instances in which I have now witnessed the limit to acuteness of hearing, and from the distinct succession of steps that I might enumerate in the hearing of different friends, as the result of various trials that I have made among them, I am inclined to think, that at the limit of hearing, the interval of a single note between two sounds, may be sufficient to render the higher note inaudible, although the lower note is heard distinctly. The suddenness of the transition from perfect...
Página 313 - The suddenness of the transition," writes Wollaston, " from perfect hearing to total want of perception, occasions a degree of surprise which renders an experiment of this kind with a series of small pipes among several persons rather amusing. It is curious to observe the change of feeling manifested by various individuals of the party, in succession, as the sounds approach and pass the limits of their hearing. Those who enjoy a temporary triumph are often compelled, in their turn, to acknowledge...
Página 131 - ... the Mode of Formation of the Canal for containing the Spinal Marrow, and on the Form of the Fins (if they deserve that name) of the Proteosaurus, by Sir E.
Página 21 - ... of an inch diameter, under a pressure of a half inch column of water ; it was then inflamed, and regulated by means of a stop-cock, so as to produce a light equal to that of a wax candle burning with full brilliancy ; the relative intensity of the light of these flames was ascertained by a comparison of shadows.
Página 311 - ... of my own hearing, as well as of others of our acquaintance. By subsequent examination, we found that his sense of hearing terminated at a note four octaves above the middle E of the piano-forte. This note he seemed to hear rather imperfectly, but he could not hear the F next above it, although his hearing is in other respects as perfect, and his perception of musical pitch as correct as that of any ordinary ears.
Página 180 - The affection of the mother for its young is strongly marked ; and the Malays make frequent allusion to this animal as an example of maternal affection. When they succeed in taking a young one, they feel themselves certain of the mother, who follows it, and allows herself to be speared and taken almost without resistance.
Página 174 - According to the natives of Sumatra, the Dugong is never found on land, or in fresh water, but generally in the shallows of the sea, when the water is only two or three fathoms deep. " During our short possession of Singapore...
Página 314 - ... like the Grylli, whose powers appear to commence nearly where ours terminate, may have the faculty of hearing still sharper sounds which we do not know to exist, and that there may be other insects hearing nothing in common with us, but endowed with a power of exciting, and a sense...
Página 310 - ... tones suited to produce any musical effect terminate ; yet all persons but those whose organs are palpably defective, continue sensible of vibratory motion, until it becomes a mere tremor, which may be felt and even almost counted. On the contrary, if we turn our attention to the opposite extremity of the scale of audible sounds, and, with a series of pipes exceeding each other in sharpness, if we examine the effects of them successively upon the ears of any considerable number of persons, we...