Miscellanies. 205 
thousand pages, he proceeds to the consideration of organic bodies, 
describing as before their qualities, uses, modes of application and 
_ methods of preparation, with which he completes the last volume of 
six hundred and fifty pages. ‘The observations on the different sub- 
stances, are made with sufficient fullness, and contain a vast fund of 
information, which makes the work interesting to the mere general 
reader. ‘The descriptions of apparatus are illustrated by twenty folio 
copper plates of neat execution, in which are given all the details 
necessary for the construction of the instruments described. 
This treatise has been adopted as a text book in the Royal and 
other institutions in Prussia and in other parts of Europe. The au- 
thor writes that it is not in the bookstores, but may be obtained from 
him at a low rate. 
20. Protest of Lt. Mather.*—Many of the readers of the Naval 
Magazine have probably seen the late Geological Report of “ G. 
W. Featherstonhaugh, U. S. Geologist,” upon a geological tour to 
the Coteau des Prairies. ‘There is no such office recognized by the 
acts of Congress as U. S. Geologist, a title assumed by Mr. F., in 
consequence of his having been a daily employé on geological duties 
under the orders of a Topographical Bureau, which is a sub-office of 
‘the War Department. 
Mr. Featherstonhaugh and myself were associated under the or- 
ders of the Topographical Bureau, and were directed to make a 
geological survey of the country between Green Bay and the 
Coteau des Prairies, and were called on for separate reports. 
While engaged on that survey, I made a sketch of the topogra- 
phy of the country adjacent to the St. Peter’s River, and took 
the bearings and comparative lengths of all the bends, so as to form 
a map of all the meanderings of the stream, with a view to illustrate 
the minute, as well as general geology, by references from my re- 
port. Mr. F. had no share in the original preparation of the mate- 
rials for this map. In his published report of that survey is a topo- 
graphical map of the St. Peter’s, which he had plotted, from my 
original notes, by an officer in the Topographical Bureau, and it 
comes before the world as a map of the St. Peter’s, “ by G. W 
Featherstonhaugh.” It is a copy of mine ona smaller scale, ex- 
cept that he has extended the courses of the streams far beyond 
* From the Naval Magazine. 
