SKETCHES OF DECEASED MEMBERS. ^PIERS. XCV 



University and librarian. He filled the chair with untiring 

 zeal and the most distinguished ability until his death, a 

 period of some twenty-four years. His first paper on a Nova 

 Scotian subject (natro-boro-calcite in gypsum) appeared in 

 1857 and was rapidly followed by very many others. In 1861 

 he was employed by the Provincial Commissioners of the 

 Industrial Exhibition to make a collection of the minerals 

 of the province for the Nova Scotian court at the London 

 exhibition of the next year. This collection was awarded two 

 medals, one in the class of mining and one in that of educa- 

 tional works and appliances. He prepared a report on the 

 minerals, which however was not then published, but it 

 subsequently appeared as a series of articles, entitled 'Notes 

 on the Economic Geology of Nova Scotia,' in our Transactions 

 (1864-69), and with a similar title in the 'London, Edinburgh 

 and Dublin Philosophical Magazine' (1866-76). He also 

 prepared for the Provincial Commissioners a second collection 

 of our minerals for the Dublin Exhibition of 1865, which was 

 awarded a medal; and another (of 240 specimens to which were 

 added 84 specimens from the late Dr. Webster's collection), for 

 the Paris International Exhibition of 1867, for which honor- 

 able mention was awarded. The latter fine collection was 

 purchased by our government and incorporated in the Prov- 

 incial Museum in 1868. To accompany and illustrate this 

 set, he prepared a 'Sketch of the Mineralogy of Nova Scotia 

 as illustrated by the Specimens sent to the Paris Exhibition,' 

 for the official catalogue (1867). This was so much apprecia- 

 ted that it was decided to have him prepare a further report 

 on the subject. Thereupon he published, by authority of the 

 government, his chief work, 'The Mineralogy of Nova Scotia' 

 (Halifax, 1869), a book which is still much used and relied 

 upon for its fullness and accuracy. He discovered and named 

 several new minerals found in this province, for example, 

 mordenite, cryptomorphite, silicoborocalcite (which was 

 superseded by Dana's name Howlite, in honor of him), and 



