1. Canalicule lacrymal surnumeraire;Schoute;Arch Ophtalmol (Paris),1901
2. Congenital fistulae of the lachrimal canaliculi;Carvill;Arch Ophthalmol,1909
3. On so-called doubling of the puncta lacrimalia;Tooke;Ophthalmology: Essays, Abstracts and Reviews,1910
4. Supernumerary punctum;Chance;Am J Ophthalmol,1922
5. Double puncta and double canaliculi of the upper lid;Bothman;Am J Ophthalmol,1932