This article was originally published with the title “ The Embryologist and the Protozoon ” in Scientific American Magazine Vol. 188 No. 3 (March 1953), p. 76 doi:10.1038 ...

The composition of fatty acids of the protozoon Ochromonas danica has been investigated by us. Nature - Occurrence of Arachidonic and Related Acids in the Protozoon Ochromonas danica.