1869. J. F. Blanche, `The Prince's Visit,' p. 21:

"When came Victoria's son on Ballarat."

1896. H. Lawson, `While the Billy boils, etc.' p. 3:

"After tea they would sit on a log of the wood-heap, . . and yarn about Ballarat and Bendigo—of the days when we spoke of being `on' a place oftener than `at' it: <i>on</i> Ballarat, <i>on</i> Gulgong, <i>on</i> Lambing Flat, <i>on</i> Creswick."

<hw>Onion, Native</hw>, <i>n</i>. i.q. <i>Native Leek</i>. See <i>Leek</i>.

<hw>Onychogale</hw>, <i>n</i>. the scientific name of the genus containing the <i>Nail-tailed Wallabies</i> (q.v.). They derive their name from the presence of a peculiar horny appendage to their tails. (Grk. <i>'onux, 'onuchos</i>, a claw, and <i>galae</i>, a weasel.) For the species, see <i>Wallaby</i>.

<hw>Opossum</hw>, <i>n</i>. The marsupial animal, frequent all over Australia, which is called an <i>Opossum</i>, is a <i>Phalanger</i> (q.v.). He is not the animal to which the name was originally applied, that being an American animal of the family <i>Didelphyidae</i>. See quotations below from `Encycl. Brit.' (1883). Skeat (`Etym. Dict.') says the word is West Indian, but he quotes Webster (presumably an older edition than that now in use), "Orig. opassom, in the language of the Indians of Virginia," and he refers to a translation of Buffon's Natural History' (Lond. 1792), Vol. i. p. 214. By 1792 the name was being applied in Australia. The name opossum is applied in Australia to all or any of the species belonging to the following genera, which together form the sub-family <i>Phalangerinae</i>, viz.—<i>Phalanger, Trichosurus</i>, <i>Pseudochirus, Petauroides</i>, <i>Dactylopsila, Petaurus</i>, <i>Gymnobelideus, Dromicia</i>, <i>Acrobates</i>.

The commoner forms are as follows:—

Common Dormouse O.—
<i>Dromicia nana</i>, Desm.

Common Opossum—
<i>Trichosurus vulpecula</i>, Kerr.