Pic roc arm in

(pik-ro-kar1 ’-min) \tukp6q, bitter; carmin~\specimens.. A preparation for staining is se microscopic Its composition as follows: carmin 1.0; ammonia 5.0; distilled water 50.0 parts. After solution, 50 parts of a saturated watery solution of picric acid are added, and the mixture allowed to stand in a wide-mouthed bottle until the ammonia has evaporated. It is then filtered. 499