Kirby has collected reports ol a number of large vesical calculi.

Calculi.-Inreviewing the statistics of vesical calculi, the strangest anomalies in their size and weight have been noticed.

The combination of endoscopy and cystotomy is rapid, safe, and potentially applicable for the removal of large vesical calculi.

Multiple Vesical Calculi.-Usuallythe bladder contains a single calculus, but in a few instances a large number of stones have been found to coexist.

"Some physicians," says Matthiolus, "use the ashes of scorpions, burnt alive, for retention caused by either renal or vesical calculi.