Dear colleagues, I am currently working on a manuscript on growth and age at sexual matutity in sea lions. No matter how hard I tried, I couldn't find at my university and from colleagues nearby the old paper by Laws (1956) i.e. Laws RM (1956) Growth and sexual maturity in aquatic mammals. Nature (Lond) 178:193-194 If you had it available, I would very much appreciate a pdf copy of it. Many thanks for your time on this request, Florencia Grandi Lic. Ma. Florencia Grandi Laboratorio de Mamíferos Marinos, Centro Nacional Patagónico (CONICET) Bvd. Brown 2825, 9120 Puerto Madryn, Chubut, Argentina. Tel: 54-2965 - 451024 - 450401 - 451301 - 451375 - Interno: 252 Fax: 54-2965 - 451543