Geology and Natural History. 245 
(3) The third counsel is to change the name of an organ, a 
we do that of a genus or Sos only when it is positively con- 
trary to the truth, or when it has been pre-occupie 
void giving special names for rare or ill-definable cases 
of structure. ithet or short rs is — —— 
to a new and thai e term, which will bes sed and m 
be hardly understood. DeCandolle = enedkat that aber a 
to occur for microscopi la ns ; an Be ous assistons 
artific 
lules” [in our aceuien we have seen them “go up”]; “il en 
restera seulement quelques-uns généraux ou fréquents, qui seront 
toujours nécessaire 
(5) Between eis or more names choose, not the most <a 
or even the most significant, but the one best known and mo 
widely recognized. 
) Between “ah equally known — used, adopt the oldest. 
Which are — r names is not difficult to know in the case o 
common organ goad is very much so in iodams histology. 
(7) In this osm of priority or of usage, consider only 
names taken from [or in conformity with] Latin or Greek, As 
accounted in this regard. Those who like spaltéffnung for 
stoma or stomate, and scheitelzelle, ai needs follow their own 
fashion ; but the genius of our own and the Fre oe language 
one 
which cannot be latinized. The latter has just been referred to 
= tally. Even the French describe the dehiscence of a cer- 
ain kind of capsule as “en boite @ savonette.” In English we do 
ios attempt to say “in ene me fashion,” = should not be under- 
Stood if we did, but we adopt the Linnean Latin “circumcissile.” 
In general, DeGandolte pane ae that a seueemey cerm, whether 
the name of a organ or of a botanical group, which will not 
enter into a inca text by a modification of its termination, is 
not My Seg and may give place to one which is 
terms are mentioned which hove ain more or less 
changed in os —_ the time of Linnzus; _ ys lanceolate, 
rt of the 
Sometimes a whitishness caused by a minute waxy exudation in 
the form of a powder: the latter is the same as pruinosus. Others 
