more compendious and comprehensive for the benefit of 
the general reader, the usual plan of the more elabor- 
ated scientific text books could not be followed, and it 
would seem that with this and the aim of the 
little work fully understood, no other apology for its ap- 
pearance in the present simple form is necessary. 
It will be further observed that (the design and object 
of) this little work is intended for the benefit of practical 
mining engineers, mineralogists, prospectors, mining 
men, etc., who feel the want of a ready reference field 
compendium of mining and mineralogical information, 
and who have not the time to grapple with theories or 
complicated formule. The work is divided into four 
parts: 
Part I treats briefly of the subject of Ore Deposits. 
These are illustrated by nine wood cuts, showing the 
more typical classes of mineral veins, and other. classes 
of ore deposits, and they are intended to aid the young 
miner in making the proper classification of all forms of 
ore deposits coming under his observation. 
The several Theories, claiming to account for the 
filling of metalliferous veins are briefly given; then four 
graphic illustrations of Faults, with rules for finding 
the faulted portion of veins, are fully discussed; or at 
least it is believed that enough has been said to give the 
novice the correct idea of how to proceed in finding the 
vein should he meet with similar problems in practice. 
Under the title “The Examination of Mines,” after 
briefly defining the object of mining examination, the 
method of sampling and estimating the ore in sight is 
illustrated by drawings, and it is believed that this with 
other hints and instructions given on this subject will 
render the undertaking of making a mining examina- 
tion quite easy, even in the hands of the young miner. 
