376 Bibliography. 
olina and Georgia are omitted. Such omissions, however, will not ma- 
terially interfere with its usefulness as a class-book, and they may be 
readily supplied ina second edition. 
10. Report on ‘the MenaSactiie of Iron, addressed to the governor 
of Maryland, by J..W. Alexander, Topographical Engineer of the 
state. Printed by order of the senate, 1840; 269 pp. 8vo, with plates 
and tables.—We have already noticed the labors of Mr. Alexander in 
the survey of the state of Maryland, (Vol. xxvi1,) and we owns 
briefly. mention the heads of the present opal report. |, : 
It is contained in four chapters. 
ig rs Seen sin a INTO THE MANUFACTURE OF IRON. 
: town a the manufactur ei 
ae. 3. Researches into the manufacture in dies lan ih 
Chap. Il. MeraLLuRGIc AND GEOGRAPHIC DISTRIBUTION OF THE OBES 
or 1roNn. ‘T'wenty one pages. 5 . 
~~. Native iron. 2. Meteoric iron. 3. Magnetic iron ore. ey 
Specular iron. 5. Fibrous brown hematite. 6. Cerkonate of iron. 
7. i eg tron. 8. Titaniated tron ore. 
JU. Means, MACHINERY AND MATERIALS EMPLOTED 1 IN THE 
MANUFACTURE OF InoN. | Sixty eight pag . ane 
Sect. 1. Blast nae generally tir Se i 
Sect. 2. Cost of mt porencich eof ‘sac frase 
their accessories. 
Sect. 3. Of ‘ho accel sabe in Wat. furnaes—thir method of 
extraction and preparation, and their cost. 
» Chap. IV. Princiran cHEMICAL PHENOMENA OF THE asxscrvns 
OF TRON. _ Righty four pages... ‘s 
sox > of the general elenical ears a Bast 
eas! bag at Ais at a Pe Sy ene 
Chae) i Binns aed peed Oa ate Pame#ia tits A mhennimena. yore 
Rit 2. £th - ies Saree 8 5, Sy ae : 7, A under 
~WECL. &.. UONATACLE saat bx 
ulects Ay ya pn prodscts accompanying te forme 
tion of rude ion: Be eres. 
Itisol that tht hiss avoatin of grat work an it ers al 
! by Mr. Alexander. “As he justly observes in another co’ 
— pineetion: appeare ht niet, ver interest inal “msking ae: 
i le _ ‘ - ae 
