A Safe and Sustainable World: The Promise Of Ecological Design - Nancy Jack Todd - Google Books

https://books.google.de/books?id=FVoxp2kYPKUC&pg=PA56&dq=wings+that+resembled+a+modified+letter+J#v=onepage

In the late sixties, as the world was waking to a need for Earth Day, a pioneering group founded a small non-profit research and education organization they called the New Alchemy Institute. Their aim was to explore the ways a safer and more sustainable…