310 BOTANICAL GAZETTE, ‘[Nov., 
those which I have examined from Europe, and differ from those which I found 
in California, of which a notice was published in the BoranicaL GAZETTE 
of September, 1885, in having isolated, light yellow sori instead of the aggre- 
gated, or somewhat concentric, and dark brown, aimost black sori found in the 
affected hollyhocks of Santa Barbara. The fungus from Beverly is of interest 
not only because very little is known of the occurrence of P. Malvacearum in 
the Eastern States, but also because in this case we have an accurate record of 
the advent of thefungus. The disease was unknown at Beverly until the pres- 
ent year, and was imported with some seeds of Malope from Europe last season. 
At present the disease is contined to the Malope and hollyhocks of Prof. Jack- 
son’s garden and that of one of his neighbors, other gardens being free from 
the disease. W. G. FaRLow. 
Making drawings with a dissecting microscope.—The apparatus con- 
sists of a Zentmayer’s dissecting microscope, the Rothrock model, ice round 
metal base being replaced by a wooden one, which is made as fol 
heavy board (D in figure) 6><12 inches, having a shoulder cut at ws end, 
mirror. When the my is prepared for drawing, A is carried forward to C, 
and then raised with nto a position at right angles with D, the weight of 
the microscope and the eeales at the end of D keep this portion in position. 
A Wollaston’s camera toncess is now placed over or rather back of the lens and 
the object drawn in the usu 
The lenses used are a one ich and a one-half tod achromatic per 
having special adapters for fitting into the arms of the microscope stan 
: for receiving the camera lucida. Mr. Zentmayer has made these Sittings 0 
adapters under my direction, and modified the mounting of the camera nightly , 
s making it more convenient for use than in its usual form. 
