A book for ordinary middle-class families who cannot afford to despise margarine

One book that seems a little older than the other cookbooks in Mum's collection is the Bestway Cookery Gift Book, first published in 1926, which suggests that it may not have come from my paternal grandmother's house. Mum picked up things like this from lots of places, including older friends of hers. 

The Spectator from 1926 offers a review of this book as a "most excellent receipt book giving exact directions". It is aimed at the "intelligent amateur" and with a nod perhaps to the economic climate of the time,  it will help "ordinary middle-class families who cannot afford to despise margarine or to throw away materials." The "squeezed middle" of the 1920s perhaps?

One such example of  'waste not, want not ' is this recipe for Essex Cakes, which requires the use of the residue from making lard known as 'scraps'. Unlikely that I'll be be trying the original recipe for these cakes, given that I'm unlikely to be able to get lard residue anywhere, but the recipe is quite simple so could work with a vegetable fat.