1. Concretion in the lower canaliculus without characteristic signs. II. Two cases of concretion in the upper canaliculus;Derby;Arch. of Ophth.,1909
2. Fungus concretion in lacrimal canaliculus (Streptothricosis, Actinomycosis);Nagel;Amer. Jour. Ophth., Series 3,1920
3. A case of mycosis of the inferior canaliculus;Dunn;Arch. of Ophth.,1897
4. A case of Streptothrix in the lower canaliculus;Kipp;Arch. of Ophth.,1902
5. Report of two cases of concretion of the lacrymal canaliculus;Shumway;New York Med. Jour.,1921