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Page 43 - ... seen by an examination of Fig. 2. A rectangular brass box was divided into two compartments A and B by an insulated brass plate a. The chamber A contained an insulated fixed plate b, and the chamber B an insulated plate c which could be moved in and out, changing the volume of B at will. The plate a was connected to one pair of quadrants of the electrometer, the other pair being earthed. Plate b was connected to one pole of a battery and plate c to the other, the middle of the battery being earthed....
Page vii - Body, never interesting themselves any further in their publication, than by occasionally recommending the revival of them to some of their Secretaries, when, from the particular circumstances of their affairs, the Transactions had happened for any length of time to be intermitted. And this seems principally to have been done with a view to satisfy the Public, that their usual meetings were then continued, for the improvement of knowledge, and benefit of mankind, the great ends of their first institution...
Page 207 - ... 4-275 1-0048 1-457 1-0150 0-295 0-9680 3-841 1-0027 1-414 1-0143 After such elaborate treatment by the greatest authority in these matters, the question would probably have long remained where Amagat left it, had not C. Bohr found reason to suspect the behaviour of oxygen at low pressures. This led to a prolonged and apparently very careful investigation, of which the conclusion was that at a pressure of 7 millim. of mercury the law connecting pressure and volume is subject to a discontinuity....
Page 206 - ... 3 millim. of mercury, and the error at this stage is about 3 per cent. It is not quite clear which is which of pv and p'v. For while it is expressly stated that p is smaller than p, the value of v'/v is given at 2'076. I think that this is really the value of v/v.
Page vii - It is likewise necessary on this occasion to remark, that it is an established rule of the Society, to which they will always adhere, never to give their opinion, as a Body, upon any subject, either of Nature or Art, that comes before them.
Page vii - The Committee, appointed by the Royal Society to direct the publication of the Philosophical Transactions, take this opportunity to acquaint the public, that it fully appears, as well from the Council-books and journals of the Society, as from the repeated declarations which have been made in several former Transactions...
Page 206 - ... centième ; et cela, bien entendu, sans tenir compte des causes d'erreur indépendantes de la lecture cathétométrique Les résultats numériques consignés aux Tableaux que je vais donner maintenant sont eux-mêmes la moyenne de plusieurs expériences ; car, outre que les lectures ont été faites en général cinq fois en alternant, on est toujours, après avoir réduit le volume à moitié, revenu au volume primitif, puis au volume moitié : chaque expérience a donc été faite aux moins...
Page 207 - Druckgrenzen von dem Boyle-Mariotte'schen Gesetze ab. Die Abhängigkeit zwischen Volumen und Druck für einen Werth des letztgenannten, grosser als 0'70 mm., kann man annähernd durch die Formel (p + 0-109) v = k ausdrücken, während die Formel für Werthe der Drucke, welche kleiner als 070 mm. sind : (p + 0-070) v = k ist. 2. Sinkt der Druck unterhalb 070 mm., so erleidet der Sauerstoff eine Zustandsveränderung ; er kann wieder durch ein Erhöhen des Druckes bis über 070 mm. die ursprüngliche...
Page 209 - ... surface be vacuous, the change of reading at the levelling screw represents the absolute pressure in the space over the other mercury surface. The difficulty, which will at once present itself to the mind of the reader, in the use of a manometer on this plan, is the necessity for a flexible connexion between the instrument and the rest of the apparatus, such as the air-pump and the vessel in which the pressure is required to be known. With the aid of short lengths of rubber tubing this requirement...