The Sequoia gigajttea has been found subject to disease in Europe. The Flore des Serves 

 says : " We add a word of reflection ; that, in many cases, arborists give to conifers too 

 substantial and rich a soil. The greater part of these trees succeed in places that would 

 be very poor and sterile for any other vegetation, and it cannot be denied when their tis- 

 sues are gorged with a sap richer in azote than belongs to their nature, they become by 

 that means alone more subject to diseases. From another side, the mineralogical constitu- 

 tion of the soil represents an important character which ought not to be misunderstood ; 

 one tree is made for a calcareous, another for silicious soil ; another for places where clay 

 abounds. To decide upon this Sequoia gigantea is a great question, before placing it finally 

 where it must remain during its long life. It may be arrived at by trying, and sacrificing 

 to it some specimens." We call upon arborists for all their attention to this subject. 



Roses. — A late work gives the annexed list of Hybrid Perpetual Roses : " The following 

 are the best Hybrid Perpetual Roses in the greatest number of instances : Geant des Batailles, 

 Baronne Prevost, Duchess of Sutherland, Mrs. Elliott, and La Reine (two uncertain kinds, 

 however), William Griffiths, Madame Lafi"ay, and Madame Rivers, Pius IX., and Robin 

 Hood, General Jacqueminot, for brilliancy, and Dr. Marx, or Robin Hood, or Auguste Mie, 

 or Baronne Hallez ; but after the first six or eight, there are a dozen of about equal merit." 



WooDLicE. — Tlie best security is said to be, to have a space a few inches wider round the 

 sides of the bed, and made smooth with dry ashes ; the ashes, &c., in which the plants are 

 plunged, may be kept damper. Lay a little dry hay, moss, or any other handy stuff, on 

 the dry ashes round the side of the bed, and thither the enemy will retreat. At breakfast- 

 time, have a pot of boiling water, and a small pot with a fine rose to it. Lift the covering 

 carefully and quietly with one hand, and sprinkle the intruders with boiling water with the 

 other. Place also pieces of carrot in small pots filled with moss, and they will go there to 

 feed. 



To MAKE A Fernery Aquarium. — Procure two propagating bell-glasses, the one ten inches, 

 and the other nine inches in diameter. Invert the larger on a stand of turned wood or a 

 saucer of sand. Cut three pieces of zinc of an S shape, and hang them over the edge of 

 the glass, the bottom of which must be covered to a depth of two inches with well-waslied 

 river sand. Fill with water, and introduce the weeds and fish. 



A thin flower-glass standing in the sand forms a support for a saucer of Ferns. Cover 

 with the smaller bell-glass, its edges resting in the zinc supports. A very amusing and 

 instructive ornament is thus completed at a cost of five shillings. 



Glass Labels. — These are now made of glass, for sticking into the soil after having the 

 name of the plant inscribed upon them by means of a diamond pencil. The dark color of 

 the soil acts as a back-ground, rendering the inscription very legible even at a distance, 

 and the legibility would be still further increased if the back of the glass were painted 

 black. Tliey are made of plate glass three-sixteenths of an inch thick, are six inches 

 long, and one inch and three-eighths wide ; but, of course, they can be made of any other 

 size desired. It must be a large stone, and thrown against it with great force, that would 

 break this kind of label ; and it has this great merit : it is invisible from a distance, get- 

 ting rid of the eyesore occasioned by numerous opaque or light-colored tallies. Sixpence 

 per dozen is the English price. 



Mangosteen. — Tliaddeus Davids, Esq., has put us under an obligation by sending 

 dried specimen, in good order, of the Mangosteen, for which we are greatly obliged 



YoL. VII.— June, 185T. 19 



