AbstractThe next programme is an extension of the last, with the object of solving and adjusting any survey network problem given as data: coordinates, bases, azimuths, distances, angles, and bearings. Since storage is at a premium in a small computer, the inclusion of the extra facilities must be paid for by a small reduction in the size of network that the machine can handle. Even so, there are some limitations on the processing of bases and azimuths which will be considered in its place; but there is none on the most important addition, namely that of adjustment of observed distances.