"Is?"
"The juice of the Upas—vulgarly called the Poison-tree."
Dr. Dosewell started.
"Upas—poison-tree—little birds that come under the shade fall down dead! You give upas juice in hæmoptysis—what's the dose?"
Dr. Morgan grinned maliciously, and produced a globule the size of a small pin's head.
Dr. Dosewell recoiled in disgust.
"Oh!" said he, very coldly, and assuming at once an air of superb superiority, "I see, a homeopathist, sir!"
"A homeopathist!"
"Um!"
"Um!"