Both Uses

ration
in
Ulysses, by James Joyce
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At this intelligence, in which he seemingly evinced little interest, Mr Bloom gazed abstractedly for the space of a half a second or so in the direction of a bucketdredger, rejoicing in the farfamed name of Eblana, moored alongside Customhouse quay and quite possibly out of repair, whereupon he observed evasively: —Everybody gets their own ration of luck, they say.†
Chpt 16 *
Mr Spencer Harty, C. E., on the instructions of the waterworks committee had prohibited the use of municipal water for purposes other than those of consumption (envisaging the possibility of recourse being had to the impotable water of the Grand and Royal canals as in 1893) particularly as the South Dublin Guardians, notwithstanding their ration of 15 gallons per day per pauper supplied through a 6 inch meter, had been convicted of a wastage of 20,000 gallons per night by a reading of their meter on the affirmation of the law agent of the corporation, Mr Ignatius Rice, solicitor, thereby acting to the detriment of another section of the public, selfsupporting taxpayers, solvent, sound.†
Chpt 17

Definitions:

(1) (ration)
a fixed share of something, especially scarce goods like food or fuel; or to limit and distribute something in fixed shares
(2) (meaning too rare to warrant focus)