This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and...
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and...
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and...
A scientific investigation into the properties and applications of abietic acid, a resin acid isolated from pine trees. Its author, Emil Oscar Ellingson, was a Norwegian chemist and pharmacologist of...