48
A . M O S C O N A , O . A . T R O W E L L A N D E . N. W I L L M E R
FIG. 3. (b) From strain of human epidermal cells.
the first to succeed in providing this. Their success depended on providing the cells with a medium which had been to some extent preconditioned by previously supporting a colony of cells. Cells from a
colony of fibroblasts in a plasma clot were allowed to grow or migrate
into short lengths of capillary tube embedded in the clot. The tubes
were then removed and broken into shorter lengths so that each length
contained only a single cell but in a medium to which it was already
adapted. The tubes were then sowrn into media of plasma and embryo
A . M O S C O N A , O . A . T R O W E L L A N D E . N. W I L L M E R
FIG. 3. (b) From strain of human epidermal cells.
the first to succeed in providing this. Their success depended on providing the cells with a medium which had been to some extent preconditioned by previously supporting a colony of cells. Cells from a
colony of fibroblasts in a plasma clot were allowed to grow or migrate
into short lengths of capillary tube embedded in the clot. The tubes
were then removed and broken into shorter lengths so that each length
contained only a single cell but in a medium to which it was already
adapted. The tubes were then sowrn into media of plasma and embryo