A thousand needed inventions

I have an original first edition published in 1925 of this book and I am trying to determine value. facinating and insightful almost prophetic. As I read page after page of what was perceived as needed in the future I became overwhelmed with how much has actually happened to human kind in the past one hundred years. It was at this point I developed a deeper understanding of the Authors’ intent. He was communicating with great passion the reality of the day. “We need to be more efficient, creative and thoughtful as to the use of the resources at our disposal. He also was aware that, recycling and waste disposal were equally as important. As is apparent, I became deeply engrossed and began my research