Correspondence. 185 
Coal Measure plants, yet unpublished, which the author hopes to 
make the subject of another memoir. A portion of the specimens upon 
which the present paper is based may be seen in the Columbia College 
Museum in New York. 
Economic geological survey in Georgia and Alabama thrortghout the belt 
traversed by the Macon and Birmingham railway. By J. AV. Spencer. 
86 pp, 8vo, with a geological map. Athens, Ga. This is a neat, con- 
cise and thorough geological description of the area designated, in non- 
technical language. The report mentions a fault at the Henryellen 
coal mine, where the direct slipping of the earth's crust has brought 
the Knox dolomyte and the Coal Measures sharply side by side, the 
fault amounting to 9,000 feet. The Clinton iron ores, the cause of the 
growth of Birmingham, and the basis of the late increase in iron man- 
ufacture in Tennessee, Alabama and Georgia, are fully described, and 
several page-plates in half-tone from photographs give much aid in 
understanding the features of the country as described. The brown 
iron ores and the coal fields are fully described, also the gold belt of 
Georgia. Graphite, asbestos, corundum and tin are enumerated among 
the economic minerals. Soils and water-powers are noted and some 
of the latter illustrated. It would be well if all the southern railways 
had a similar survej'' and publication. 
CORRESPONDENCE. 
Dr. David Honeyman. Dr. Honeyman was born at Corbier Hill, 
Fifeshire, Scotland, in 1817, and died at Halifax, Nova Scotia, on the 
17th of October, 1889. He received his education at the University of 
St. Andrews. Having selected the church as a profession, he studied 
first at Glasgow and afterwards at Edinburgh. In 1836 he entered the 
United Secession Theological Hall, was licensed in 1841, and joined 
the Free Church immediately after the Disruption. Honeyman was 
appointed professor of Hebrew in the Free Church College of Halifax 
in 1846, and after that time he made his home in America, being suc- 
cessively minister of the Presbyterian congregation of Schubenacadie, 
afterward of Antigonish, and finally in 1862 he resigned the ministry, 
and devoted himself wholly to scientific work. During his stay at 
Antigonish he made an excellent geological memoir on that juirt of 
Nova Scotia, which he published in 1865, in the Proceedings and Trans- 
actions of the Nova Scotian Institute of Natural Science, vol. i, Part iv, 
p. 105. In 1862 he was appointed superintendent of the Nova Scotian 
section of the London International Exhibiton ; and also at the Paris 
exhibition of 1867. During his stay in Paris his knowledge of the 
geology of Nova Scotia attracted the attention of Barrande and 
de Verneuil, both of whom esteemed very highly his observations on 
the PalEeozoic rocks and fossils. From that date, Barrande "never 
