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Queries. 
All Questions and Answers should be clearly and concisely written on one side 
of the paper only, and every question or answer must bear the name and address 
of the writer. If this is written on the left-hand bottom corner, it will not be 
published, in which case initials or other signature should appear in the usual place, 
when more than one question or answer is sent by the same correspondent. Each 
must be written’on a separate piece of paper. 
Correspondents, in sending us answers to questions, are desired to commence 
by quoting the number and title of the question as printed, before beginning their 
reply. All answers should be sent to the Editor, 1 Cambridge Place, Bath, and 
must reach him before the 12th of the month. 
415.—Drawing Micro Objects.—Will anyone give the simplest 
and easiest way for an amateur to draw micro objects, and which 
is the des¢ and also cheapest instrument for the purpose ? 
416.—Transferring Pictures.—How may pictures be trans- 
ferred to wood—by means of methylated spirit or by some other 
method ? 
417.—Zine Cement.—I have some of this, which, however, 
does not harden properly or become white, as it should do. Will 
anyone give me a hint on the subject ? 
418.—-Teeth of Flies.—Some few months ago, in reading the 
papers in Scéence Gossip, on ‘The Teeth of Flies,” I could find 
no methods of preparation, as I should much like to examine 
slides of these. Will any reader kindly help ? ENQUIRER, 
419.—Mounting in Balsam.—Why is it that after leaving 
objects in clips for a week or more, the balsam will not set, and 
upon cleaning away the superfluous balsam, the air gets under the 
cover-glass, works its way towards the centre, and spoils the 
objects P 
_ 420.—Dendritic Spots.—What is the method to mount dendri- 
tic spots on paper to show under the microscope ? 
421.—Coccoliths.—How may Coccoliths from chalk be 
mounted for preservation ? 
422.—Chalk-Organisms.—What is a good and simple way to 
mount chalk-organisms ? 
423.—Lettuce-Leaf— How can I prepare the leaf of the 
lettuce to show the calciferous vessels, as figured in Thome’s 
“ Botany ” ? 
