1. Die Darmbakterien des Neugeborenen und Sauglings;Escherich;Fortschr. der Med.,1885
2. Ibid 106 6 ed. 1925
3. Klein Houston 1899 Preliminary account of the results of a bacterioscopic analysis of different cereals and food stuffs 29th Ann. Rep. Gt. Brit. Gov. Bd. Suppl. Rep. Med. Off. 1899-1900 593
4. Recherches experimentals sur les maladies des plantes;Laurent;Ann. Inst. Past.,1899