118 MISSOURI BOTANICAL GARDEN. 
facts, and practices his intellect in the most complete form 
of induction. The exercise of the intellectual faculties 
which this involves tends, more than does the study of 
languages or history or mathematics, to develop originality 
of mind and exactitude of knowledge. The mind is 
trained to attention and accuracy, the two mental qualities 
in which all mankind are said to be more deficient than in 
any other whatever. To do good work in botany requires 
great exactitude, patience and judgment. 
Thiselton Dyer in an address before the British Asso- 
ciation for the Advancement of Science, made in 1888, 
speaking of the intellectual value of the study of botany, 
declared that he did not doubt that precisely the same 
qualifications of mind which made Jeremy Bentham a great 
jurist, enabled his nephew to attain the eminence he reached 
as a botanist. And he added that ''as a mere matter of 
mental gymnastic, taxonomic science will hold its own with 
any science." John Stuart Mill, who himself possessed a 
competent knowledge of botany and was therefore a com- 
petent judge of the intellectual value of the study, tells us 
that the proper arrangement of a code of laws depends on 
the same scientific conditions as the classifications in natural 
history, and that there could not be a better preparatory 
discipline for that important function than the principles 
of a natural arrangement, not only in the abstract, but in 
the actual application to the class of phenomena for which 
they were first elaborated, and which are still the best 
school for learning their use. He also informs us that of 
this Jeremy Bentham was perfectly aware, and that his 
Fragment on Government contains clear and just views on 
the meaning of a natural arrangement which reflect directly 
the influence of Linnaeus and Jussieu. 
The study of botany deserves to be encouraged because 
of the pleasure which a knowledge of the science brings 
within reach of those who are its votaries. The trees, 
the shrubs, the flowers are a new delight, and a constant 
pleasure to those who know and can interpret the story of 
