116 The American Geologist. February, 1892 
Literary Record (London), the American Naturalist, the Biblio- 
theca Sacra, the Methodist Quarterly Review, the Scotsman 
(Edinburgh), and many other prominent journals. 
During the winter of 1880 and 81 he was engaged on ‘‘Sparks 
from a Geologist’s Hammer.”” Some chapters on cosmogony, how- 
ever, expanded under his hands to such an extent that he de- 
termined to withhold them and develop this subject into a 
separate work. He accordingly supplied their place with some 
new chapters, reserving the discussion of cosmogony for more 
leisure. 
Having been elected professor of geology and paleontology in 
the Martha’s Vineyard summer institute he delivered 25 lectures 
before a class of students. and five more popular lectures on 
scientific subjects before the public. He also, meantime, delivered 
a public address on the Speculative consequences of Evolution 
before the ‘‘Institute of Christian Philosophy,” at Greenwood lake, 
on the boundary between New York and New Jersey. At Martha's 
Vineyard he made a large collection of Algz, adding some 
specimens from Nahant and Marblehead. These were studied 
and carefuly mounted in an album volume after returning home. 
At Ann Arbor he gradually became connected with some 
musical organizations, and gave much time to the perfecting of 
their organization. The central organization was the University 
Musical Society, incorporated under the law of the State, of which 
he was chosen president. This society organized three agencies: 
1. The Ann Arbor School of Music, of which he was vice-presi- 
dent ofthe Board of Trustees. 2. The Choral Union, of which 
he was president, and 3. The Orchestra. These organizations 
absorbed much of his time during the following year. 
1881. His work, Sparks from a Geologists Hammer, appeared 
in the early winter of 1880-81. It was favorably received and 
met with a large and immediate sale. 
This superb work is of thrilling interest to every reader who has an 
intelligent desire to know more of this wonderful planet on which we 
live. * * * The chapter, “A group of Geologic Time,” is worth more to 
the general reader than the price of the whole book. * * * The plan of 
the book is most 4dmirable. Prof. Winchell’s first chapter takes the 
reader upon an interesting excursion to Mount Blanc and the Mer de 
Glace, where the esthetic aspect of Geology, as there so beautifully dis- 
played, is presented. This is followed by three chapters, on the “Old 
Age of Continents,” “Obliterated Continents,” and “A Grasp of Geologic 
