Studying the habits of the night moth; probably an unused drawing for one of the ‘How to…’ books, reproduced in InventionsJB408
Cooling buoys lowering the temperature of the gulf stream to chill the ardour of our enemy in the battle of the AtlanticJB395
A simple precaution to save the staircarpet when in constant use, (alternative version of the drawing on p33, not published)JB362
Why are people disagreeable at breakfast time? – because they get out of bed on the wrong side. This is how to prevent itJB396