The origin of the phrase publish or perish

In 1928 C.M. Case reflected in the journal Sociology and Social Research that “If it be true that, for the time being at least, the quality of American sociological writing is in inverse ratio to its quantity, the reason is to be sought, among other things, in the fact, first, that the system of promotion used in our universities amounts to the warning, ‘Publish or perish!’. This concern that quality is inversely proportional to quantity, inevitably leading to shallow research as the amount of published research increases, feels startlingly contemporary. The author continues the observation, writing that “In the second place, publication in general is more easy than formerly; and in the third place, there is an insistent demand for sociological textbooks on the part of the great publishing houses, many of whom are busily creating what they call ‘Social Science Series,’ in which they and their respective corps of authors are industriously duplicating one another’s output”.