470 
rare plants present themselves at once, that it is 
hardly possible for the most practical botanist (and 
such was Dr. 8.) to determine all with sufficient 
accuracy at the moment. Hence it is that many 
of these supposed new species prove perhaps on 
further investigation to be old, and some of the 
supposed old new, while the old too are mistaken 
one for the other. Add to this, that the necessity 
of moving quickly from one spot to another, and 
the time consumed on horseback or on shipboard, 
further contributed to limit the time which could 
be employed in the real scientifical examination of 
species of plants. 
It is certainly a pity that Dr. Sibthorp did not 
mark all his specimens, or the drawings; but he 
trusted to his memory, and dreamed not of dying. 
In our second tour a daily journal was kept as in 
the former, and the same attention was paid to the 
determination of the vulgar names and uses of 
plants and of animals, and particular species as they 
occurred were noted down; but now a more par- 
ticular geographical arrangement was adopted, and 
the Flora and Fauna of every province was thrown 
together, as you will find in the journal-book in re- 
spect to the Flora Byzantina, Bithynica, Montis 
Athos, Attica and Beeotica, Zacynthia, Achaica, 
Eliensis,Messeniaca, Arcadia, Argolica,Corinthiaca, 
and Laconia. 
The Dacian plants which you mention were col- 
lected on his journey to Constantinople by land, 
and probably include those plants which he observed 
on Mount Hemus. 
