provided with grand medicine chests, the supply of medicines in West Africa being frequently in the inverse ratio with the ability to administer them advantageously.
Inside the lid of these medicine chests is a printed paper of instructions, each drug having a number before its name, and a hint as to the proper dose after it. Thus, we will say, for example, 1 was jalap; 2, calomel; 3, croton oil; and 4, quinine. Once upon a time there was a Bristol captain, as good a man as need be and with a fine head on him for figures. Some of his crew were smitten with fever when he was out of number 4, so he argues that 2 and 2 are 4 all the world over, but being short of 2, it being a popular drug, he further argues 3 and 1 make 4 as well, and the dose of 4 being so much he makes that dose up out of jalap and croton oil. Some of the patients survived; at least, a man I met claimed to have done so. His report is not altogether reproducible in full, but, on the whole, the results of the treatment went more towards demonstrating the danger of importing raw abstract truths into everyday affairs than to encouraging one to repeat the experiment of arithmetical therapeutics.
