Cold acidulous spring for diseases of the kidneys and stomach.
"The South of France--East Half"
Charles Bertram Black
Virgilia had always impressed him as a trifle meagre and acidulous, and Elizabeth Gibbons had never impressed him at all; but he instantly caught at the flamboyant and high-charged beauty of little Preciosa McNulty.
"Under the Skylights"
Henry Blake Fuller
He made silent, acidulous comments on certain manifestations of mediocrity placed there by men so much better quartered, better known, better circumstanced than himself.
"Under the Skylights"
Henry Blake Fuller