| In one division a regular pioneer squadron has been formed for telegraphic and heliographic duty. |
| Scanning the horizon line, he hurried impatiently toward the heliographic ridge. |
| Mr. Maunder is charged with the heliographic photography and reductions, and with the preparation of the Library Catalogue. |
| On the 17th, heliographic communication was opened with General Ellis. |
| Three methods to determine the heliographic latitude and longitude of sunspot groups are described below. |
| The day following I received a heliographic message from these burghers, who were now on the other side of the line. |
