Gerard Troost — Glenn. 89 
of the zinc ores of the state, and describes the methods of 
reducing them and of manufacturing brass. 
The tenth report was presented to the House on Jan- 
uary 12, 1850* and seventy-five copies were ordered to be 
printed for the use of the House. No edition was ever pub- 
hshed and neither the manuscript copy nor any of the copies 
printed for the House can now be found. Dr. Troost's 
monograph on tlie Crinoidea was also submitted to the 
legislature at the same time and a memorial praying aid in 
its publication was introduced but was defeated. The report 
itself was very probably brief since the American Journal of 
Science in noticing it mentions only t^e monograph on crin- 
oids. Its information was derived from a letter from Dr. 
Troost himself. 
The nature and variety of Dr. Troost's other writings 
may be gathered best from the appended bibliography, which 
has been made as complete as possible, especially as regards 
his geological reports. 
A few family data may be added. Dr. Troost was a 
son of Everhard Joseph Troost and Anna Cornelia van 
Haeck. On January 14, 181 1 he married Margaret Tage 
who was born in Philadelphia September 12, 1790. Their 
children were Caroline, born in Philadelphia. December 6, 
181 1, and Lewis born at Cape Sable, Md., May 26. 1818. His 
wife died at Cape Sable, ^Id., August 3, 1819. His second 
wife, Mrs. O'Reilly of Philadelphia, survived him a number 
of years. He had a brother. Dr. Benoit Troost. some years 
his junior, who lived in Kansas City, Mo. His son Lewis 
has left one child, a Mrs. Parker, living in or near Mobile, 
Ala. His daughter Caroline married Albert Stein. They 
removed to Mobile, Ala., and Mr. Lewis Stein of Spring Hill, 
Ala. is one of their descendants. 
He sleeps in an unmarked and neglected grave in an 
obscure corner of the old city cemetery of Nashville. The 
State will be asked at the coming session of the legislature 
to place an appropriate marker over his grave and thus 
rescue from oblivion the last resting place of one who gave 
much of his time and skill to the service of the State in 
making known the existence or extent of natural resources 
* House Jour, for 1849-'50, p. 559. 
