TY - JOUR T1 - On the Variation in the Growth of Mammalian Tissue in vitro According to the Age of the Animal JF - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934) VL - 88 IS - 606 SP - 476 EP - 482 PY - 1915/04/01/ UR - http://dx.doi.org/10.1098/rspb.1915.0009 M3 - doi:10.1098/rspb.1915.0009 AU - Walton, A. ER -