N. SCHELTEMA. “Determination of the geographical latitude and 
longitude of Mecca and Jidda executed in 1910-—11”. Plate II. 
Biel: 
Observation-station at Jidda. 
a Mecca-gate, 
G Medina-gate. 
abc Part of the rampart. 
e Observation-station, Dutch Consulate. 
Scale in hectom. 
Observation-station at Mecca. 
I Ka'bah. 
II Entrance to the town on the Jidda side. 
IL Observation-station. 
Scale in hectom. 
Proceedings Royal Acad. Amsterdam. Vol. XV. 
