Figure 2. The Dome containing the sixteen-inch Refractor, and the Bridge connecting the Observatories. 



Seen from the terrace o% er the riroiin of Lourdes. St. Peter's is on the right of the picttire. 





tB^ 



Figure i. A nearer view ot the Refractor Uuine with attached dweUiiig hou.e, shcvvuig also olhci duuies 



and the spire over the Lourdes Grotto. 



