61 



;es of Chemical and Geological Essays with a General 

 Introduction : 



Edition published in 1886. 

 oml Edition with new Preface, 1890. 



A New Basi- for Chemistry: A Chemical Philosophy, 1887. Translated 

 by Prof. W. Spring into French anil published in Pans and 

 Liege M l"n S\ >teme Chemique Nouveau, 1889. 

 malic Mineralogy based on a Natural Classification with a General 



Introduction, 1891. 



Special Report on the Trap iH'kes and Azoic Rocks of Southeastern 

 Pennsylvania, 1878. 



EXTRA u.< irHES. 



1866-1867. Lectures on Chemical and Physical Geography delivered 



before the Lowell Institute, Boston. 



Twenty lecture^ on Chemistry delivered before the Ladies' Educa- 

 tional Institute, Montreal. 



lectures on Chemistry of the "Waters delivered before the 

 -ton Society of Natural History. Boston. 



One lecture on the Constitution of Water as Related to Modern 

 Chemistry and Physics, before Examiner Club. 



1875. One lecture on the Gla/ier Period, delivered for the Lit. and His. 



ry of Quebec. 

 lit een lectures on the Practical Geology of the U. S., Boston. 



1876. Eighteen lectures on Elementary Geology. 



1876. A Course on the Older Rocks before the Boston Society of Nat. 

 History. 



1876. Tin- Building of the Earth, delivered in Salt Lake City. 



1877. Chemical History of the Earth, before Chestnut Street Club. 

 1881. ( 



1883. Twelve lectures on Mineral Physiology before Low. -11 Institute. 



1884. The Manufacture of Iron, before Finance Club. Cambridge. M 



1885. On Arbor Day. Montreal. 



1886. On GtoolOgJ, Campobells. 



1 'n the Alp-. Liverpool, En-land. 

 Theory O f y, 'lean- '.-. Montreal. 

 1889. Goethe and Modern Science, Thr Concord School of Philosophy. 



