647 



rii/pnum Jlagellare. Greenfield, Lut not Hypnum brevirostrc. Not unconinion. 



in fructification. filicinurn. About Marple &c. 



piliferum. Cotterill clougli. common. 



rutahulum. Very common. aduncum. Baguley mooi', and 



velutmum. Near the river Tame near Bowdon. 



at Arden, and near Hyde. uncinatum. Marple aqueduct. 



albicans. Chorlton fields. commutatum, Bredbury wood &c. 



ruscifolium. Common in brooks. common. 



confertum. Bredbury wood and cupressifomw. Several very cu- 



other places, common. rious varieties are found in Bredbury 



cordifolium. Pits near Reddish. wood, Cheshire. 



triquetrum. Very common. molluscum. Near Marple, veiy 



loreum. Greenfield. common. 



— Joseph Sidehotham ; Manchester, March 16, 1843. 



324. On the arrangement of a Herbarium. Tmagining that the 

 plan I pursue in the arrangement of my herbarium is in some respects 

 superior to that of Mr. King (Phytol. 585), I am induced to forward a 

 short detail of it, in the hope that it may contain hints which may be 

 of service to some of your readers. I ought to say, that although I 

 have varied some of the details, I adopted the principle of the plan 

 from seeing it carried out in the herbarium of a friend, which contain- 

 ed an extensive collection of both British and foreign species, kept in 

 beautiful order. Specimens. — My specimens are fastened on sheets 

 of folio post paper, of good texture, size 15^^ inches by Og-. The spe- 

 cimens are fastened with gum Arabic on the inner right hand page of 

 each sheet ; and on the opposite one I write the name, order, and 

 other particulars : I also write the botanical name at the top of the 

 outside of the sheet. Before placing each species in its appropriate 

 place in the herbarium, I wash it lightly over with a solution of cor- 

 rosive sublimate in spirits of wine or spirits of turpentine, in the pro- 

 portion of 60 grains of the former to 8 fluid ounces of either of the 

 latter. Arrangement. — I arrange my specimens on the natural sys- 

 tem ; and for this purpose I have wrappers, each of half a sheet of 

 double crown paper folded : on the outside of which is written the 

 name of one of the natural orders ; in this I place all the sheets of 

 specimens belonging to that order. In the orders Rosaceae, Compo- 

 sitse, Gramineae, and one or two others, it may be as well to subdivide 

 each into two or three portions, and use a separate wrapper for each. 

 The wrappers, with their contents, are placed in wooden boxes, made 

 after the fashion of a music-case, namely, with a lid at the top, and 

 the front hinged so as to fall down on a level with the bottom. I 

 have these boxes made of the size of my paper, and 6^ inches deep, 

 which accommodates about 300 species in each case. As an index I 



