Some unrecognized laws of nature : an inquiry into the causes of physical phenomena, with special reference to gravitation / by Ignatius Singer and Lewis H. Berens.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Some unrecognized laws of nature : an inquiry into the causes of physical phenomena, with special reference to gravitation / by Ignatius Singer and Lewis H. Berens. Credit: Wellcome Collection. Public Domain Mark