Tlie Lichens of Victoria. 145 



grow, will need the use of cold chisel and hammer. Rocks, 

 especially granitic and basaltic, require a light well-tempered 

 steel chisel, by which tolerably thin pieces can be detached 

 from almost any rock by the exercise of a little skill. 



All that is necessary to preserve the specimens is, to fold 

 them up at once in soil ])aper (newspaper will do), to prevent 

 them rubbing against one another in the bag in which they 

 are carried home. Those which grow on earth require more 

 careful management. They need to be collected with a 

 sufficient piece of earth, and tenderly wrap})ed up. When 

 brought home, the earth needs to be pared off under the 

 specimen to a level surface, and then solidified by the 

 application of a solution of isinglass in spirits of wine. The 

 solution, when liquefied in a bottle under a heat of 25° 

 to 80^ C, or 77° to 86° Fahr., is dropped with a camel hair 

 pencil on to tlie earth till saturation, taking care not to let 

 it touch the thallus, which it would discolour. It should he. 

 applied underneath. When, after a day or so, the earth, 

 thus saturated, has become dry on the surface by exposure 

 to the air, the specimen should be placed for a few days 

 under sufficient pressure to keep it in shape ; it will thus 

 harden into a form suitable for glueing on to jniper, as 

 described below. 



5. — The Herjurium. 



The mounting and arrangement of lichens will be most con- 

 veniently carried out by glueing each specimen (with Russian 

 glue) on to the centre of a piece of writing-paper, with a space 

 below to record the name of the ])lant, the substratum on 

 which it was found, the place and date of finding, and the 

 name of the collector, and with a space above to record notes 

 of examination. These pieces of writing-paper may be then 

 pinned at each end on to quarto single sheets of white 

 cartridge paper with " lill " |)ins, six specimens of the same 

 species to tlie sheet, if small, or two if larger. They can 

 thus be easily detached for special examination. The largest 

 specimens may be glued on to the cartridge paper itself 

 These sheets of specimens should be enclosed in a quarto 

 cover of ca.rtridge paper, one species, or even one variety to 

 each cover, and the covers, put loose, with the open side 

 inwards, into a quarto book covei of pasteboard (three ply), 

 joined together by a strip of strong white binder's cloth, of 

 such width that each cover, when filled, is two inches thick. 



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