I'm not the sort of girl to wear my heart on my sleeve," Anne, who was fond of small Conservational tags, assured him merrily.
"Sisters"
Kathleen Norris
Conservational principles do apply, however, to the human energy factor required for their efficient use.
"The Economic Aspect of Geology"
C. K. Leith
On the other hand, it may result in wider introduction of briquetting, coking, and other processes, which will tend to improve the local industry and be Conservational in their effect.
"The Economic Aspect of Geology"
C. K. Leith