NOTES AND QUERIES. 199 
Micro-Func1.—On Saturday, the 16th July, in a ramble along 
the valley from Buxton to Miller’s Dale, I met with the following 
leaf fungi, specimens of which I intend to exhibit at the Manchester 
Microscopical meeting on the 4th August :— 
Uredo mintata and 
Xenodochus carbonarius on the larger burnet Sanguisorba 
officinalis. 
Uredo cirsit and 
Puccinia syngenestarum on the common thistle. 
Azcdium epilobit and 
Puccinia epilobii on the Willow herb, Zpilobium hirsuta. I have 
on former occasions met with them also on Z. montana. 
Acadium compositarum on the colts foot in large quantity. 
I also found some twenty or thirty plants of the insectivorous 
Butterwort, Pinguicula vulgaris, with thousands of insects im- 
prisoned, and most of them partly consumed.—Zvos. Brittain. 
A NEW WORK ON PRacticaL Microscopy.—We are glad to 
announce that Mr. David Bogue, the publisher of ‘Science 
Gossip,” has a work upon “ PracricaL Microscopy ” in the press. 
It is written on the lines of “ Quekett’s practical treatise on the use 
of the microscope,” is profusely illustrated, and will be sold at a very 
modest price. 
Mountinc Inrusor1A.—Will any of your readers kindly give 
me a receipt for making cells for mounting Infusoria, and also for 
fastening on the thin glass cover.—f. 2 A. Howorth. 
TRICHINZ IN AMERICAN PorkK.—To correct by positive and 
personal evidence the false and exaggerated reports which have 
been circulated in Europe with regard to the quality of American 
hog products, the State Department has had the business of hog 
raising and pork packing investigated by the Chief of the Bureau 
of Statistics. In accordance with his instructions the Commis- 
sioner visited representative hog-raisers, buyers, shippers, packing- 
houses, stock-yards, rendering establishments, health offices, and 
forwarding agents, and has now submitted his report, which will 
immediately be published by the Department for circulation in 
Europe. 
Some of the conclusions arrived at in this report are as follows :— 
That the percentage of American hogs infected with trichinaee— 
though this question is thus far largely one of supposition—is, in 
all probability, by reason of the superiority of the breed and feed, 
much less than that among the hogs in any other country. 
That the freedom from trichinosis of the two great pork-consum- 
ing centers of the West, Chicago and Cincinnati, furnishes the 
strongest possible evidence of the purity of American pork. In 
