Likewise, the problems of proper feeding, adequate disease control and successful selling have increased as the size of the unit has grown and as greater intensiveness is practiced.
"A Living from the Land"
William B. Duryee
The very intensiveness of their will to do seemed to exert an extensive influence over their lives, and so they not only accomplished more but actually lived longer.
"Health Through Will Power"
James J. Walsh
This order is, in a general way, the order of intensiveness of the several kinds of invention.
"The Classification of Patents"
United States Patent Office