These are the most frequently used words in this book.
adam
agricultural
agriculture
animals
between
british
capital
cent
century
change
coal
countries
early
economic
economists
economy
eighteenth
energy
england
english
estimates
even
example
far
fertility
figure
first
food
further
great
growth
head
heat
high
history
horses
however
incomes
increase
increased
industrial
industry
investment
labour
land
large
later
less
level
living
man
marriage
materials
may
men
might
million
new
nineteenth
number
organic
output
per
percentage
period
population
power
pp
price
process
production
productivity
proportion
rate
rather
real
revolution
rise
rising
scale
see
smith
society
sources
standards
system
tab
term
therefore
though
time
tons
total
two
upon
use
used
wages
work
years