The serum, when subjected to heat, coagulates and hardens like egg. This property is one of its striking characteristics; it is attributed to a particular substance which is thereby readily recognizable, and which is called albumine, because it is the one present in egg white, termed albumen.
Systéme des connaissances chimiques (1801), Vol. 5, 117. Trans. Joseph S. Fruton, Proteins, Enzymes, Genes: The Interplay of Chemistry and Biology (1999)