| Henrys and | |
| Observatory, | 14.9 | 23 | Gautier | |
| Nice | | | | |
+--------------+-----------+------------+-------------+------------------+
| Brussels | | | Merz and | |
| Observatory | 14.9 | 20 | Cooke, 1877 | |
+--------------+-----------+------------+-------------+------------------+
| Observatory | | | Merz and | |
| of Bordeaux | 14.9 | 22.4 |Gautier, 1880| |
+--------------+-----------+------------+-------------+------------------+
| Observatory | | | Merz and | |
| of Lisbon | 14.9 | -- | Mahler | |
+--------------+-----------+------------+-------------+------------------+

TABLE VI.

List of Observatories employed in the Construction of the Photographic
Chart and Catalogue of the Heavens.

All are provided with 13-inch photographic, coupled with 11-inch visual
refractors:

----------------------------------------------------------
| Name of Observatory. | Constructors of Instruments.|
| |-------------------------------|
| | Optical Part.|Mechanical Part.|
|------------------------|--------------|----------------|
|Paris | Henrys | Gautier |
|Algiers | " | " |
|Bordeaux | " | " |
|Toulouse | " | " |
|San Fernando (Spain) | " | " |
|Vatican | " | " |
|Cordoba | " | " |
|Montevideo | " | " |
|Perth, Western Australia| " | " |
|Helsingfors | " | Repsold |
|Potsdam | Steinheil | " |
|Catania | " | Salmoiraghi |
|Greenwich | Sir H. Grubb | Sir H. Grubb |
|Oxford | " | " |
|The Cape | " | " |
|Melbourne |