has become famous in text books: Strychninae Sulph … … gr.I Potass Bromide … … . 3vi Aqua ad … … … . . 3viii Fiat Mistura
This solution deposits in a few hours the greater part of the strychnine salt as an insoluble bromide in transparent crystals. A lady in England lost her life by taking a similar mixture: the precipitated strychnine collected at the bottom, and in taking the last dose she swallowed nearly all of it!”
“Now there was, of course, no bromide in Dr. Wilkins’ prescription, but you
that they are innocent. Now, what reasons are there against Miss Howard’s having deliberately poisoned Mrs. Inglethorp?”
“Why, she was devoted to her!” I exclaimed.
“Tcha! Tcha!” cried Poirot irritably. “You argue like a child. If Miss Howard were capable of poisoning the old lady, she would be quite