578 PROCEEDINGS OE THE NEW YORK MEETING 



the years of his illness strengthened his courage and undoubtedly pro- 

 longed his life. 



As the man is more than his achievements, so the character of Samuel 

 Lewis Penfield must be accorded higher praise than his labors. Honest, 

 and modest, and true; sympathetic, and generous, and loving; steadfast 

 and simple in his affections and in his beliefs, his beneficent nature has 

 affected the lives of many who have come within its influence, and, being 

 transmitted beyond the range of his own experience, will contribute its 

 share to the sum of human goodness. And, as his works and writings 

 will be found, in print long after his personality shall have faded from 

 the minds of men, may this suggestion of his noble character be found in 

 place beside the record of his accomplishments. 



Bibliography * 



1877. On the chemical composition of triphylite from Grafton, New Hamp- 

 shire. American Journal of Science (3), xiii, 42o— 127. 



1S78. Analyses of eosphorite, triploidite, and dicliiusonite (by George J. Brush 

 and Edward S. Dana). Ibid., xvi, 40, 45, 117. 



1879. On the chemical composition of tripliylite. Ibid., xvii, 226-229. 

 Analyses of fairfieldite and fillowite (by George J. Brush and Edward 



S.Dana). Ibid., xvii, 362, 365. 



Analyses of chabazite and rhodochrosite (by George J. Brush and Ed- 

 ward S. Dana). Ibid., xviii, 50. 



On a new voliuuetric method of determining fluorine. Amer. Chein. 

 Jour., i, 27-29. 



On the chemical composition of amblygonite. American Journal of 

 Science (3), xviii, 295-301. 



1880. On the chemical composition of childrenite. Ibid., xix, 315-316. 

 Analyses of some apatites containing manganese. Ibid., 367-369. 

 Analyses of spodumene, fl-spodumene, eucryptite, cymatalite, muscovite. 



microcline, and killinite (by George J. Brush and Edward S. Dana). 

 Ibid., XX, 259-263, 268, 271-274. 



1881. Analysis of jarosite from the Vulture mine, Arizona. Ibid., xxi, 160. 



1882. Occurrence and composition of some American varieties of monazlte. 



Ibid., xxiv, 250-2.54. 

 Ueber die Phenylhomoparaconsaure (with R. Fittig). Ann. der Chem., 

 ccxvi, 119-127. 



1883. Scovillite : a new phosphate of didymium, yttrium, and other rare earths 



from Salisbury, Connecticut (with G. J. Brush). American Journal 

 of Science (3), xxv, 459^63. 

 Analyses of the two varieties of lithiophilite. Ibid., xxvi, 176. 

 On a variety of descloizite from Mexico. Ibid., 361-365. 

 18.84. Identitj- of scovillite with rhabdophane (with G. J. Brush). Ibid., xxvii, 

 200-201. 



• This list has been taken from the memoir published by Professor L. V. Pirsson in the 

 American Journal of Science, fourth series, vol. xsii, 1906. It has been revised by 

 Professor H. L. Wells, and is believed to be practically complete. 



