of preferving Fungi, &c. 265 
Put the fpecimens to be preferved into wide-mouthed jars 
made of flint glafs, and well fitted with corks: fill the jars quite 
full with one or other of the above liquids, fo as to leave in as 
little air as poffible: cork the jars very clofe, covering the corks 
«vith tin foil, or thin fheet lead, fuch as may be had from the 
dealers in tea, turning the edge of the lead or tin downwards fo as 
to lap over and under the edge of the jar. 
The dark-coloured plants are very apt to difcolour the liquor, 
the milky ones to render it turbid, and fome of the juicy ones 
to excite the vinous fermentation. In any of thefe cafes the 
liquor muft be repeatedly changed. 
Agarics may be tranfported to almoft any diftance with little 
damage, by the following method. Put them into an earthen 
jar upon a layer of mofs a little preffed down; cover them with 
more mofs, carefully Alling: up the interftices; and thus go on 
ftratifying them until the jar be quite full; pour in the liquid 
No. I. as long as the mofs will continue to imbibe any ; then ftop 
the mouth of the jar fecurely. It may be ufeful to mention, 
that when feveral fpecies are put into one jar, they may be 
labelled with flips of card paper, written upon with black lead 
pencil. 
- 1 have principally ufed the liquor No. I.; but No. IL. is beft 
adapted to preferve fome of the more tender colours, and it alfo 
keeps the texture more firm. Let the botanift however be careful 
not to mix the liquors, nor to change one for the other after a 
plant has once been wetted with one of them. 
Amongft the lefs fuccefsful attempts, I fhall juft mention that 
acids, even thofe of mineral origin, are apt to produce mouldi- 
nefs; that neutral falts foften and deftroy the texture of the 
plants; though perhaps a weak folution of common falt, with a 
Vor, II, Mm fufficient 
