How? or, Spare Hours Made Profitable for Boys and Girls

"How? or, Spare Hours Made Profitable for Boys and Girls" by Kennedy Holbrook is a helpful book designed to fill children's free time with fun and learning. It is packed with different projects, crafts, and experiments perfect for both boys and girls, likely created to give parents ideas for keeping their kids busy in creative ways. It starts with a how-to and a detailed list of activities, including making toys, doing science experiments, and building useful things. The writer stresses why it's important for kids to use their free time wisely and shares real-life examples to show that the ideas actually work. The content is meant to get kids' imaginations going, teaching them through hands-on projects like building wind-powered toys and crafting their own books.