----------------+------------------------------+ | First Cost, including Engine | | to drive it. | +------+-------+-------+-------+ | One | Two | Three | Five | Name of Machine.|light.|lights.|lights.|lights.| ----------------+------+-------+-------+-------+ | £ | £ | £ | £ | Gramme single | | | | | light “A” with| 330 | 535 | 725 | 935 | Siemens lamp | | | | | | | | | | Cost per light | -- | -- | -- | -- | per hour | | | | | | | | | | Siemens single | | | | | light “medium”| | | | | with Siemens | 365 | 611 | 835 | 1185 | small-sized | | | | | lamp | | | | | | | | | | Cost per light | -- | -- | -- | -- | per hour | | | | | ----------------+------+-------+-------+-------+ | Six lights. | Twenty lights.| +--------------+---------------+ | £ | £ | Gramme “many | | | light” machine| 576 | 1155 | with candles | | | | | | Cost per light | -- | -- | per hour | | | ----------------+--------------+---------------+