NOTES AND QUERIES. 27 
series contains a T. S. section of Human Pancreas, stained with 
carmine, and of which the chromo is very well executed. No. 30 
contains a folding plate, illustrative of lichens and lichen structure, 
and the digest of Schwendener’s theory, so that this number re- 
commends itself to those interested in lichens. We have a strong 
dislike a/ways to folding plates, but our objection in this case 
is nearly overcome by the excellence of its details. No. 31 is 
devoted to the T. S. section of Human Pancreas injected with 
carmine, and in the ‘“ Methods of Preparation” it is stated that 
the injection mass devised by Dr. Carter of Leamington is the best 
for the purpose. 
BACILLARIA PARADOXA.—Mr. Robt. C. Douglas, in the Decem- 
ber number of the Journal of Postal Microscopical Society, states, 
“that in 1851 he found this diatom in the ditches intersecting 
swampy meadows on both sides of the river just above the town 
of Stafford,” and another correspondent, Mr. E. Bostock, states, 
“‘that there seems little doubt this diatom is more generally dis- 
tributed than is supposed, for, in addition to the locality 
mentioned by Mr. Douglas, it is noted in ‘ Practical Microscopy’ 
as having been found attached to algze taken from the canal at Bir- 
mingham.” ‘The latter correspondent fairly assumes, “it is quite 
possible that so far as the canal is concerned the diatom may have 
been imported, but, on the other hand, the fact of its being found 
in ditches around Stafford is against that view. It can, however, 
no longer be correct to describe it as it is at the present time in 
existing authorities as a purely marive organism.” 
Bacllaria paradoxa was found by Professor Marcus Hartog in 
1880 in a fresh water well at Penmaenmawr, North Wales.—ED. 
To Mount 1n GLycerRINnE.—Heat india rubber till it becomes 
sticky, then dissolve it in benzole ; put a ring of this both on cover 
and slide, then let it remain till tacky ; place the object in glyce- 
rine, float it on if convenient, arrange it and place, and press down 
the cover, wash away spare glycerine and run asphalte varnish or 
any other finish as preferred and the slide is finished. The advan- 
tages are the india rubber sticks in spite of the glycerine and is 
elastic, and so a great amount of trouble is saved.—/. G. P. Vereker, 
in the Journal of the Postal Microscopical Society. 
Mr. Botton’s Stup10o.—We have received from Mr. T. Bolton, 
Naturalist, of No. 57, Newhall Street, Birmingham, a circular from 
which we regret to learn that his Studio has not been supported in 
a measure to be of the remunerative character it deserves, and 
soliciting an accession of fresh subscribers, and the continuance of 
the support of the old ones,—to use the language of Mr. E. Ray 
Lankester (no mean authority), ‘ Mr. Bolton has conferred large 
benefits upon naturalists by his excellent agency for the supply of 
