Pavlov's Dog(s)

This from an article about Pavlov in this week's New Yorker.

     Apparently the gastric fluids of a dog became a popular treatment for dyspepsia in Russia and elsewhere, and Pavlov set up a gastric juice factory....

 "An assistant was hired and paid thirty rubles a month to oversee the facility ...five large young dogs, weighing sixty to seventy pounds and selected for their voracious appetites, stood on a long table harnessed to the wooden crossbeam directly above their heads. Each was equipped with an esophagotomy and fistula from which a tube led to the collection vessel. Each ‘factory dog’ faced a short wooden stand tilted to display a large bowl of minced meat. By 1904, the venture was selling more than three thousand flagons of gastric juice annually, and the profits helped increase the lab budget by about seventy per cent."

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