..."Here's the smell of blood on the hand still, and all the perfumes of Arabia cannot sweeten it... 
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...Wherever possible the various duck yards should beused to grow a crop of green stuff such as oats orrye as this not only helps out on the supply of greenfeed but also helps to sweeten the soil...
Harry M. Lamon 「Ducks and Geese」
...From dusk to eleven on a favourable night in the summer monthsthe fun is fast and furious; thousands of moths of the commonsorts come and go; now and then a "good thing" to sweeten thetoil...
Montagu Browne 「Practical Taxidermy」
...I thought to sweeten it by opening theplace with a shovel, and baling a lot of the stagnant water out; but itwas irreclaimable, and the horses could not drink it...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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