366 WILLIAM PRESCOTT DEXTER. 



a perfect method, and consequently one of general application, for the 

 estimation of phosphoric acid, engrossed entirely Dexter's attention, 

 and for many years he was considering and experimenting on this 

 subject. The subject had an extraordinary fascination for him. No 

 difficulties, and he met with many, could daunt him, and he has left 

 behind much work of a very interesting and high kind on this subject. 

 At last he seems to have discovered a method which would satisfy 

 even his exacting requirements, but unfortunately he did not live to 

 complete his work. The introduction to it he had worked out, in the 

 form of a most rigorous examination of the methods now in use, and 

 the degree of accuracy of which they are susceptible, but the com- 

 pletion of his method remains unfinished. During the last few years 

 of his life he settled in Leamington, England, and led there a peaceful 

 life, making the best room of his house into a laboratory, and devoting 

 himself to the study of analytical chemistry, and amusing himself with 

 some practical problems in higher mathematics. He died on the 8th 

 of November, 1890. 



Papers by William Prescott Dexter. 



1. Renal Calculus. Passage through the Ureter, assisted by the Use of 



Ether. Boston Medical aud Surgical Journal, 1S49, XL. 219. 



2. Tabulae Atomicse : The Chemical Tables for the Calculation of 



Quantitative Analyses of H. Rose. Recalculated for the more recent 

 Determinations of Atomic Weights, and with other Alterations 

 and Additions, by William P. Dexter. Boston, 1850, 8vo, pp. 70. 

 3 Ueber die Trennung der Thonerde vom Chromoxyd. Poggendorf's 

 Annalen, 1853, LXXXIX. 142. 



4. Ueber die Trennung der Wolframsaeure vom Zinnoxyd. Poggen- 



dorf's Annalen, 1854, XCII. 335. 



5. [Analysis of Polyhalit.] Reported by H. Rose, Bericht der Aka- 



demie der Wissenschaft zu Berlin. 1854, p. 412. 



6. Ueber das Atomgewicht des Antimons. Poggendorf's Annalen, 



1857, C. 563. 



7. On the Double Salts of Cyanide of Mercury. Proceedings of the 



American Academy, V. 355. (9 Dec, 1861.) 



8. Remarks upon the recent Determinations of the Atomic Weight of 



Antimony. Proc. Amer. Acad., V. .359. (14 Jan., 1862.) 

 9 On the Aluminates of Baryta. Proc. Amer. Acad., VI. 97. (28 

 Jan., 1863.) 



10. Obituary Notice of Heinrich Rose. Proc. Amer. Acad., 24 May, 



1864, VI. 312. 



11. On the Preparation of Hydrofluoric Acid. American Journal of 



Science, 1866, [2.], XLII. 110. 



