Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Tremulous
Tremulous the voice … like any one’s when jesting with a subject not a joke.
—Thomas Hood
Tremulous as a nest.
—Victor Hugo
Tremulous as the mimosa leaf.
—Lydia Huntley Sigourney
Tremulous like fire.
—Algernon Charles Swinburne
Tremulous as brook-water.
—Oscar Wilde
Tremulous as a leaf forsaken of the summer.
—N. P. Willis