It was noon of the Lunar day, and terrifically hot today. The storage batteries will take no more charge, and have been disconnected. All new photocells were taken to the mine, along with the batteries and motors from the tractrucks, and several other electric motors taken from the rocket ship. The diamonds have proven useful after all. All the empty cans were collected, and the lead and tin melted off. A diamond toothed saw was achieved with the aid of the old tractor belts from the tractrucks. It cuts the soft gypsum with an enormous saving of labor. Carting it back is not easy, however.
The mine power station is not yet self-sufficient, and is drawing on the batteries. New photo-cells will help, however.
June 20.
June 20.The long afternoon has begun. Miners are gaining on the furnace
