6 THE ATOMIC WEIGHTS. 



Mulder, E. Historisch-Kritisch Overzigt van de Bepalingen der ^quiv- 

 alent-Gewigten van 13 Eenvoudige Ligchamen. Utrecht, 1853. 



Mulder, L. Historisch-Kritisch Overzigt van de Bepalingen der ^quiv- 

 alent-Gewigten van 24 Metalen. Utrecht, 1853. 



OuDEMANs, A. C, Jr. Historisch-Kritisch Overzigt van de Bepaling der 

 J^]quivalent-Gewigten van Twee en Twintig Metalen. Leiden, 

 1853. 



Stas, J. S. Untersuchungen iiber die Gesetze der Chemischen Propor- 

 tionen iiber die Atomgewichte und ihre gegenseitigen Verhalt- 

 nisse. Uebersetzt von Dr. L. Aronstein. Leipzig, 1867. 



See also his " Oeuvres Completes," 3 vols., published at Bruxelles 

 in 1894. 



Meyer, L., and Seubert, K. Die Atomgewichte der Elemente, aus den 

 Originalzahlen neu berechnet. Leipzig, 1883. 



Sebelien, J. Beitrage zur Geschichte der Atomgewichte. Braunschweig, 



1884. 



OsTWALD, W. Lehrbuch der allgemeinen Chemie. Zweite Aufl. I 

 Band. SS. 18-138. Leipzig, 1891. 



The four Dutch monographs above cited are especially valuable. 

 They represent a revision of all atomic weight data down to 1853, as 

 divided between four writers. 



For the sake of completeness the peculiar volume by Hinrichs * must 

 also be cited, althovigh the methods and criticisms embodied in it have 

 not been generally endorsed. Hinrichs' point of view is so radically 

 different from mine that I have been unable to make use of his discus- 

 sions. His objections to the researches of Stas seem to be quite un- 

 founded ; and the rejoinders by Spring and by Van der Plaats are suffi- 

 ciently thorough. 



* The True Atomic Weight of the Chemical Elements and the Unity of Matter. St. Louis, 1894. 

 Compare Spring, Chem. Zeitung, Feb. 22, 1893, and Van der Plaats, Corapt. Rend., 116, (362. See 

 also a paper by Vogel, with adverse criticisms by Spring and L. Henry, in Bull. Acad. Bruxelles, 

 (3), 26, 469. 



