Gelatine, advertising recipe booklet.

Gelatine is a strange substance derived from the collagen inside animals' skin and bones. Since approximately 1997 there have been fears about using gelatine because of the potential risk of transmitting animal diseases, especially BSE, and since 1997 the US Food and Drug Administration (FDA) have been monitoring it.
The above recipe booklet of c1940 contains recipes for savouries, salads, milk puddings and ice cream.