1883. } Microscepy. 227 
seven notes of our musical scales, he avoids many of our melo- 
dial sequences ; the majority of his tunes follow the dur or sharp 
scales and the two-eighth or two-fourth measure. The instru- 
ments accompanying Indian song are the flageolet, flute, pan- 
flute, whistle, and various kinds of tambourins, drums and kettle- 
drums. See Baker, Theodor: Ueber die Musik der nordameri- 
kanischen Wilden; Leipzig, Verlag von Breitkopf und Hartel 
(Haertel), 1882, 8vo, pp. 82, 2 plates, of which one is colored— 
Albert S. Gatschet. 
MICROSCOPY.! 
DRAWING APPARATUS OF Professor His.—In part first of his 
“Anatomie menschlicher Embryonen,” pp. 8-9, Professor His 
has described a drawing apparatus altogether similar to the one 
here represented. 
For anatomical and embryological work, an apparatus of this 
kind is simply indispensable. 
As every working naturalist 
knows, an apparatus that ad- 
mits the use of the camera luci- 
ment, one is compelied to draw 
by measurement and “by the 
3 a process which at best is 
Stow and tedious, and liable to d =) 
i o 
tion of every thorough embry- 
= Qlogical work consists, as Pro- 
a fessor His remarks, of exact 
P : 
