While I was allowing my fancy to run riot in wild conjecture on the possible explanation of the strange anomalies which I had so far met with on Mars, Sola returned bearing both food and drink. These she placed on the floor beside me, and seating herself a short ways off regarded me intently. The food consisted of about a pound of some solid substance of the consistency of cheese and almost tasteless, while the liquid was apparently milk from some animal. It was not unpleasant to the taste, though slightly acid, and I learned in a short time to prize it very highly. It came, as I later discovered, not from an animal, as there is only one mammal on Mars and that one very rare indeed, but from a large plant which grows practically without water, but seems to distill its plentiful supply of milk from the products of the soil, the moisture of the air, and the rays of the sun. A single plant of this species will give eight or ten quarts of milk per day.