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Published online by Cambridge University Press: 11 November 2009
A comparison in laying of breeds: S. C. W. Leghorn, Rhode-Island Red, and Black la Bresse. N. Fiat and B. Spilberg. Hassadeh, Vol. XII, No. 5, Feb. 1932. Mikveh Israel Agricultural School, Palestine (Hebrew).
The comparison was made on birds of general flocks, all of which were trapnested.