...The soil is always slightly alkaline, and so isthe saliva; any undue acidity is by both in some measure counteracted; butthe earth is also of further service... 
Dinks, Mayhew, and Hutchinson 「The Dog」
... The Wasps' possess only the acid element; and it is to this very acidity and not to the 'so-called' skill of the operators that the preservation of the provisions is due...
J. Henri Fabre 「Bramble-bees and Others」
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cornstarch ripostes crests
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