These are the most frequently used words in this book.
above
accurate
age
arc
astronomical
astronomy
axis
below
between
building
calendar
centre
century
church
circle
clock
compass
curves
date
day
design
dial
different
early
earth
equal
equinox
even
example
feet
first
gnomon
great
greek
horizontal
hours
ii
illustration
image
inches
inside
instruments
know
known
later
latitude
left
length
line
man
may
means
minutes
moon
must
new
noon
north
often
part
people
place
planets
points
prayer
read
right
ring
rome
science
scientific
scientists
seen
set
shadow
show
shown
solstice
south
sphere
stars
still
stone
sun
sundial
ti
time
today
top
two
use
used
vertical
wind
winter
word
work
world
years
zodiac