Modern theories of chemistry / by Lothar Meyer ; translated from the German (5th edition) by Phillips Bedson and W. Carleton.
- Lothar Meyer
- Date:
- 1888
Licence: Public Domain Mark
Credit: Modern theories of chemistry / by Lothar Meyer ; translated from the German (5th edition) by Phillips Bedson and W. Carleton. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
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![work are to be found notices of a few changes necessitated, since the pubhcation of the first two books. The separate sections of the third book are very unequal in contents and extent, and this for various reasons. In those cases where the theoretical consideration of the matter has allowed it, I have contented myself with a short account of the same without introducing the various details, leaving to the reader the application of the theory to special cases. When the representation appeared to be the immediate out- come of the results of observation, I have not introduced the latter when they could be found collected together in other works, but have preferred to refer the reader to these works. This has been done in the case of thermal actions of various kinds, for which I can refer the reader to Thomsen's original work, and also the account of these phenomena given by Naumann and H. Jahn. I have not made any use of, but have entu-ely excluded, all matters which appeared to me not sufficiently ripe for theoretical conclusions, and amongst such belong many of the thermochemical data which, although indicating certain relationships, are despite this at the present time of value only as em]Dmcal data, which cannot with any degree of certainty be made to form the basis of theoretical conclusions. To this class of material belong also the numerous photochemical observations which, despite their practical importance and much that is remark- able and attractive in them, are not capable of theoretical handling, as are the measurements made by Bunsen and Roscoe. In two sections only have I made considerable use of ex- perimental data, viz. that dealing with electrolysis and that with the action of mass. Although there are works which are devoted entirely to electrolysis and allied subjects, stih I have not been able to make use of these nor to refer to them, as they are as a rule, even in the case of the work of G. Wiedemann, written from the physical standpoint for physicists,](https://iiif.wellcomecollection.org/image/b2265172x_0019.jp2/full/800%2C/0/default.jpg)
