Geology and Mineralogy. 317 



Text-book of Mineralogy, with an extended Treatise c 



ography and Physical Mineralogy ; by Edward Sali 



Dana, Curator in Mineralogy, Yale College. On the plan 



Crystallography and Physh-.il Mi , r.ih. <y ; l.y Edwakd Salis- 

 bury Dana, Curator in Mineralogy, Yale College. On th ' 

 and with the cooperation of Prof. James D. Dana. 4s»j pp. 



rith over 800 wood-cuts and a colored plate. New York, 

 1877. (John Wiley & Sons, 15 Astor Place).— This work is in- 

 tended for a class-book in the science. One half is occupied with 



thr Mibjurts of Cry>tallography. Physical Mineralogy, and Chem- 

 1 " 1 nd Determinative 'Mineralogy, and the other h;i"' '' 



alf with the 

 species and a Catalogue of Americ 



rvstalloerapbv and optical mineralog; 



much length i 



eralogy, 

 Descriptions of species and a Catalogue of American local 



ni1 ;■ subjects of crystallography and optical 



illustrations and descriptions of the I 

 uic.no are given for the same purpose, besides numerous diagrams 

 and figures of crystals. About seventy pages are .lev. .ted to 

 teBcriptiTe crystallography, over twenty to mathematical crystal- 

 l<\LiTa|>!iY after Nauman's system, and as many more to the same 

 ■"> -vsten., each i,r which subjects is very fully illustra- 

 ted ... ti u -„ ,.. ; ;ln ,i ,i„ ,.| 1:l pter on optical characters extends to 

 thirty-five pages. Besides, there are lists of recent works :m d 

 memoirs on the various subjects considered under Physical Mra- 



The Descriptive part of the volume follows in its classification 



t^enriallv that <>t th.- last edition of the system of Mineralogy, 

 and is, in the main, a condensation of that work. But all new 

 species introduced since the date of its publication have been in- 

 serted. The more important species— about half of all known— 

 are described at length (though with few analyses, and often onlv 

 the percentage composition), and the rest more briefly. 



The preparation of this text-book, as the Preface states was 

 begun by Professor 1 > ~ -"' 



work. But it was interrupted' before the 



™s ni eted ml in ,| lt >tat. t 1 s remaii dm I tak. ip 

 h ,,,,, 1 >N M, I,',u • t - 1 - Dana. To .Mr. Dana is 

 due a revision of the cr 



■ions, the chapter on Miller's System, the sect: i 



Optical mineralogy, the notes on all new s,.. 



'Wiew of the who). ~ ^ ltS from reCellt P ub_ 



hcations. f 



For the full synonymv of the mineral spec, 



,h\i d.seriptions of Amen .a, and fomgn 

 ,'vsesot minerals tnat 

 = : ,.■ • ' . - , , ••- 



minerals and occurring pseudomorphs, ami a 

 reader will still have to look to the System of Mineralogy and its 



10. (Second Preliminary Report on the Mint ■ dug , »f P ¥; 

 ™>ti„, l, v F . A. (iExm; 'with analyses ot 

 Harrisburg, 1876.— This is a report of progress, embodying the 



