= 56 ‘HE MICROSCOPE. . 
and their union cross-junction with others gives the new muscle 
bundle. Leven admits that he is not quite certain as to this, but he 
thinks this view more probable than Waldeyer’s, who holds that the 
new bundle is formed from the increase in length and breadth of the 
muscle cells. In the bundle, presumably formed as described, faint 
cross striz are visible toward the end of the fourth week, and about 
the same time the sarcolemma sheath can be made out. The nuclei, 
which at first lay in the cell centers, find their way, as the muscle 
grows, to the periphery. At this time (fourth week-end) there are 
no karyokinetie figures within the muscle bundle. 
BOTANY. * 
Datmatran Insect Powper anv rrs ADULTERANTS. |—Berringer has 
“spointed out that this powder having proved so superior to the Per- 
_ sian Insect powder, the latter has been almost entirely driven out of 
the market. The large demand for the flowers, from which the 
powder is made, has resulted in the sophistication of the flower- 
powder with the ground stems and leaves of the plant. This is the 
usual condition of the imported powder. LBerringer has discovered 
also, that further adulteration takes place in this country, the Hunga- 
rian daisy being imported for this purpose. The close resemblance 
HUNGARIAN DAISY. DALMATIAN INSECT FLOWER. 
I. Involucre of dried flower. V. Dried Involucre, x. 2. 
IT. Receptacle. Vi. Receptacle, x. 2. 
Ill. Ray floret, x. 3. Vil. Ray floret, x. 3. 
IV. Disk floret, x. 7. Vill. Disk floret, x. 4. 
*Under this heading will be included all Abstracts relating to the various 
departments of Botany. 
+ Am. Jour. Pharmacy, January, 1889, p. 1. 
