Analyses of several Minerals. 83 
the notes, as given in the table. It will be seen that each of the 
chords is entirely different—that not a note found in any one of 
the chords, is found in any other. 
| enth,” (21.) We again give the example, and also place below 
tt 9 —9-7-p--- 3B +-## #2 
6-42 5 Spe es 
Cy Ge i eet +-6- 
F7 Abz p7 B7 
: p? ad Bs Ges 
: B2 Dp GH2 E#2 
t G#1 By! E#! C+1 
27. We find it stated in certain theoretical ied lees “that the 
major and minor keys of the same letter,” (as C major, and C 
minor) “are nearly related, inasmuch as the two tonic chords are 
alike, with the exception of the third, and both have the same 
dominant chord.” We will write the tonic and dominant chords 
of C major (in the natural scale,) and of C minor (in three flats, ) 
and from the table, ascertain the notes of each. We find the notes 
of the two keys entire- -4 
ly different, and conse- Pe — 3 eee 
quently C major is not @=2 2 we tes! 
related to C minor, ex- C Mason. C Minor. 
cept in the fourth de- 2 2 Eb2 pi 
gree, through the fol- ai ie C1 5B 
lowing keys, viz.: F, ey ee Gi G! 
Bb, Eb, and C minor. 
As upon the keyed instruments, it has been necessary to use the 
Same sounds in C major and C minor, the oe, referred to, 
were led to make the statement we have quote 
To be continued.) 
Arr. XIIL.—Analyses of several Minerals ; by Wiuiu1am Fisuer. 
d ae following analyses were performed in the Laboratory of 
F Prof. Booth, whose guidance in their performance I cl 
with pleasure 
sand from New Jersey, a few miles southeast of Phila- 
delphia. 8 is blueish green, soft and adhesive when moist, in 
large and hard grains when dry, and containing a trifling admix- 
ture of quartz sand. The analysis was performed in the usual 
* A description of the Euharmonie Organ is necessarily postponed to the next 
number of the Journal. The instrument however, in A on w doys, will be set up in 
Boston, and will be ee with pleasure, to those interested in the pro- 
Sress of musical scien re ym Ra 13, North Russell street, 
