This ole codger needs help in finding the title and publisher of a book from way back in 1946-49 era.
I've looked at several of the Popular Science publications, but so far I haven't found the book though the illustrations suggest that it may have been a Popular Science publication.
The book was hardback, around 9x12", perhaps 1.5" thick. I think it had a red cover.
I recall it was filled with construction projects. One may have been on how to make a boat trolling motor from an A-Model Ford horn...can't recall for sure.
But I do remember one specific project:
It was the directions to construct a "weather forecasting" device which had a round sun-face that was drawn such that the face was smiling, but if rotated 180 degrees, the face was frowning. A disck with the face glue to it was mounted at the end of a horizontal axel, and on the back side of the frowning face, a box was attached that was filled with cobalt chloride (?). The box had a cloth cover, and when the air became humid, the box contents would pick up moisture, become heavier, and the frowning face would rotate into view.
If you can provide me any information about this book, I would be grateful. Perhaps I can then find it on ABE or other old book sales places and ultimately purchae it.
Thank you for your help.
Jim