What is number of baseballs used in a 9 inning game?

Nine innings- for that mater nine players MAY reflect the nine-month growing season- if you accept the idea that Baseball evolved out of some form of ( like Harvest festivals) agrarian Sun-worship among American Indians. this theory was espoused by Ripley- and also accounts for the four bases being symbolic of the Four Seasons- the aversion to Night Baseball ( for decades) and the fact it is not played in inclement weather- Here Comes the Sun- indeed!