Lachrymal Calculi

Treatment of Lachrymal Obstruction

In affections of the lachrymal sac the rhinologist may be called in to ascertain whether there is any predisposing cause in the nose and to treat this if found, or to treat the condition of the sac when this involves manipulations in an area with which he is familiar. There is close relationship between the lachrymal sac and the nasal cavity, in addition to direct communication through the tear...

Extirpation of the Lachrymal Sac

Dominique Anel and the small lachrymal syringe.

DOMINIQUE ANEL was a French surgeon who lived between 1679 and 1730, the exact date of his death being unknown and variously reported. He was a pupil of the celebrated French surgeons J. L. Petit (1674-1750) who invented the tourniquet, and George Mareschal (1658-1736) First Surgeon to the French King and Inspector of Surgery at the Charit6 Hospital, Paris. Anel made three original contribution...

Action Calculi III : Higher-order Calculi

This paper extends an arbitrary action calculus [11] to higher order, in a way which parallels the extension of the -calculus [13] to higher order by Sangiorgi [18]. Action calculi are a subclass of action structures [10], which in turn are an enriched class of monoidal categories. Each action calculus AC(K) is distinguished by its set K of controls and their reaction rules. The notion of actio...

Pancreatic Calculi