QUERIES AND ANSWERS. 
153 
MISCELLANEOUS INTELLIGENCE. 
ARTICLE XII.—QUERIES AND ANSWERS. 
On Ferns, in answer to a Subscriber. —A subscriber who en¬ 
quires in your last number, page 74, for some account of Ferns, is 
informed that in Maund’s Botanic Garden, for this month, he will 
find a description of four Ferns which I have never before seen 
figured. A letter to the author of that work will, doubtless elicit 
further information. If he does not succeed, I will transmit him a 
list, and such particulars as I am able. Felices. 
Mining Insect, on the Rose Tree.— There is a little insect 
which by its mining, causes the leaves of the Rose Tree to be streaked 
with little white lines ; pray can you tell me the name and habits of 
the insect, and whether it is injurious to the plant in any degree ? 
Wm. Simpson. 
Queries on Fountains. —If you could illustrate your Work 
now and then with a few specimens of handsome playing fountains 
in flower gardens, and for other places, you would confer an obliga¬ 
tion upon many of your readers, who have long been making en¬ 
quiries on this subject, and who would be very glad if you would 
give the names of several gentlemen, who are now in England, and 
considered eminent in the art of hydraulics. The French and Italians 
study this science more than the English, perhaps you could give 
the names of some of those authors. About ten years ago a Mr. 
Philipsthall, a Swiss gentleman, was lecturing in various counties in 
Englaud, on this beautiful and wonderful science;—he gave some of 
the most delightful and astonishing specimens of what could be 
accomplished,—even a fine Scotch mist, which many clever garden¬ 
ers say cannot be made by art, but very desirable in many hot¬ 
houses. W. Gardener. 
Reply to M. D. on the Persian Melon.— I offer my apology 
for the neglect of attention to the question proposed to me at page 
409, of vol. 3. I conceived that I had replied to it; my mind bav¬ 
ins confused the initials of W. D. with those ofM. D. 
I do not perceive any error in the practice described ; the mere 
circumstance of training downward from the back of the pit, could 
not, I should think, cause the fruits to crack; the accident must have 
arisen from unscreened solar action, I should conceive, for I have 
frequently seen melons of the old kinds, burst very suddenly for 
want of shade, between the hours of eleven a. m. and three p. m. One 
fact is certain, I never observed a crack or Haw in any Persian 
