Biochemical Journal is available in PubMed Central back to 1951. Some older issues are still being digitised. The most recent issue there today is that for April 1st, 2005, so there appears to be an embargo period.
PubMed Central is a digital archive of life sciences journals, hosted by the US National Institutes of Health.
For part of the week, librarian working within biomedical and health sciences at the University of Leicester. And, for part of the week, not. For that part, dad to 4 and 15 year old boys, deputy squire of Braybrooke Morris Dancers, Northamptonshire, coordinator of a foodbank. Not necessarily all at the same time.