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1893.) Briefer Articles. 29 
tain their natural position. Such a jar as is commonly used for the 
cultivation of seedlings answers well for this purpose. The sensitive 
paper can be fastened to the back of the jar by means of soft wax. The 
object should be exposed to strong sunlight, and a window. should be 
chosen in which the direct rays can be reflected horizontally from a 
mirror upon the object, which in turn projects its shadow upon the sen- 
sitive paper. The object should be placed as near the paper as pos- 
sible so that a well-marked shadow is obtained, and consequently a 
clearly defined print. From two to five minutes exposure in strong 
sunlight is sufficient to obtain a print, after which the paper should 
be treated to a water bath and dried in the usual way.— GEorGE E. 
STONE, Leipzig. 
A new order of Schizomycetes.— The following should be substi- 
tuted for lines twenty-two to thirty in the preceding number of this 
journal, p. 403. 
Myxobacter aureus n. sp.— Plate XXV, figs. 34-36.— Colonies when 
rising to form cysts milky white. Rods large, cylindrical, rounded at 
either end, 4—7X.7—.94. Cysts spherical or oblong, golden yellow, 
thick walled, one to twelve or more in number, distinct within a hya- 
line matrix, 75—350X75—275y. The encysted rods mingled with a 
yellow oily material. Cyst groups .7—1™™" long. 
On very wet wood and bark, in swamps. Kittery Point, Me., Bel- 
mont, Mass. 
Myxobacter simplex n. sp— Rods as in M. aureus. Cysts solitary 
within a thin envelope, very large, irregularly rounded, bright reddish 
yellow, 250-400 in diameter. The encysted rods flesh-colored in the 
mass and adhering in numerous elongate groups. 
Occurring, sometimes with the last, in the same localities and 
habitat. 
The two species above described are very common in the situations 
mentioned, being found most frequently on sticks lying in partly dry 
wood pools. In general appearance they greatly resemble a minute 
Trichia, and are conspicuous trom their very bright color. The cysts or 
groups of cysts are never crowded, and are usually sparsely scattered over 
the substratum. Neither of these forms has been cultivated apart from 
its natural substratum. In AZ. aureus all stages of development have 
been obtained from the first appearance of the msing rod mass. The 
cysts are formed from this mass by a rolling together of the rods at 
certain points corresponding in number to the cysts to be produced. 
As the cysts roll themselves together, they become gradually separated 
from the hyaline matrix in which they are finally imbedded. The 
