Funk's studies combined a careful chemical fractioning of the extracts of rice polishings with tests for their antineuritic power upon polyneuritic birds, after the manner taught by eijkman.
"The Vitamine Manual"
Walter H. Eddy
To Hopkins and to eijkman may therefore be justly attributed the credit of calling the world's attention to the unknown substances which Funk was to christen a little later with the name vitamines.
"The Vitamine Manual"
Walter H. Eddy
eijkman found that two or three weeks feeding sufficed to produce these symptoms and it was he who first showed that the addition of the rice polishings to the diet was sufficient to relieve the symptoms.
"The Vitamine Manual"
Walter H. Eddy