Miscellaneous Intelligence. 167 



4. Modem American Methods of Copper Smelting, by 

 Edward Dyer Peters, Jr. Second Edition, revised and en- 

 larged. 398 pp., 8vo. New York, 1891. (The Scientific Pub- 

 lishing- Co.). — The first edition of this valuable work appeared 

 some four years since and was at that time noticed in this Journal 

 (xxxv, 88). In the second edition now issued, the work is 

 thoroughly revised, with the addition of considerable new matter 

 which should make it still more widely useful. 



OBITUARY. 



Dr. Joseph Lovering, for many years Professor of Mathe- 

 matics and Natural Philosophy at Harvard University, died on 

 the 18th of January at the age of seventy-eight. He was born 

 in Charlestown, Mass., Dec. 25, 1813. In 1836, three years after 

 his graduation at Harvard, he was appointed tutor of mathematics 

 and physics at that institution, and two years later he began the 

 duties of his professorship ; this position he held until his death, 

 although some three years since he was relieved from active 

 labor. In addition to his college work, he gave nine courses of 

 twelve lectures each, before the Lowell Institute, and other briefer 

 courses before the Smithsonian Institution, the Peabody Institute 

 of Baltimore and at other points. From 1867-76, he was con- 

 nected with the IT. S. Coast Survey, and had charge of the com- 

 putations for determining by cable trans-atlantic longitudes. He 

 was elected a member of the National Academy of Sciences in 

 1873, and in 1879 he received the degree of LL.D. from Harvard. 

 For nearly twenty years he was the permanent secretary of the 

 American Association, and in this latter capacity, edited fifteen 

 volumes of the proceedings of the association. In 1873 he was 

 made its president; his presidential address upon the Mathe- 

 matical and Physical state of the Physical Sciences, is published 

 in vol. viii, (1874) of this Journal. Several of his physical papers 

 have appeared in this Journal, and many others, a partial record of 

 an active life, are to be found in the publications of the American 

 Academy of Arts and Sciences and elsewhere. He leaves a 

 widow, two sons and two daughters. 



William P. Rust, who for a number of years was in the 

 employ of the U. S. Geological Survey as a collector, was taken 

 suddenly ill while engaged in his work at the celebrated Trilobite 

 locality, near his home at Trenton Falls, N. Y., and died a few 

 days thereafter (on the 17th day of October,) 1891, aged 65 

 years. Mr. Rust was connected with the work of Mr. Charles D. 

 Walcott upwards of twenty years, and collected large series' of 

 fossils under his direction. He also made large collections of 

 Trenton fossils that are now in the Museum of Comparative 

 Zoology, Cambridge, Mass., the New York State Museum, the 

 Museum of Cornell University and in the National Museum. His 

 skill in working out the trilobites and other fossils from the 

 Trenton and the Chazy-Calciferous limestones in New York and 



