Miscellaneous Intelligence. 291 
but as the spot from which they watch for the crossing of the hostile 
tribes across the plain. 
in 
no instance could they find a deposit or even a sample of nitre. Mr. 
inn, H. M. Consul at Jerusalem, also informed Mr. Poole that he had 
hever seen any; nor had the Sheik Aboo Daook and his men. The 
Arabs generally make their own nitre by boiling the dung of goats; 
others scrape it off old walls or limestone-caves, but never in any large 
quantity. 
- The Arabs charge 60 piastres or 10 shillings for a camel-load of salt, ‘ 
about 500 Ibs., delivered in J erusalem, and the purchaser pays the Turk- 
government 15 piastres more for duty. Each camel will make about 
the ordiary method by volume. The barometer is made wi 
to ma 
E “10n 10 centimeters quare, and fe Conti 
“ight, the total addition of weight will be 10 cubic centimeters of mer- 
‘ : 
€ tube. M. Secchi has constructed such a barometer for the College 
me, which has the tube 15 millimeters in diameter. The variation 
a 
