Scientific Intelligence, ^c. 



239 



powder, when the oil is exposed to the action of ammoniacal gas ; 

 consisting of, 



Oil .... 89-0 



' Ammonia . . .11.0 



100-0 



XIX. — Table exhibiting the comparative weiaht of Sea Water 

 at different places in Holland. 



The following table is extracted from a work in the Dutch language 

 upon Acetic Acid, entitled *' Handleiding tot het vinden der ware 

 sterkte van het Acidum Aceticum door middel van de digtheid 

 door A. Van der Toorn" Gravenshage, 1824^ 4to, which the 

 author's kindness has enabled me to consult. The first column con- 

 tains the names of the localities from which the water was procured, 

 and the other three exhibit the weight in grammes of a cubic deci- 

 metre (= 61-028 English cubic inches, the gramme = 15-38 grains) 

 of sea water, at different periods in 1820, at the temperature of 

 39^ Fah., pure water being reckoned 1000*0. 



Places from which the water was taken. 



Zeeland, . . \ 

 South Holland, ^ 



North Holland 



\ 



Vriesland, 



Gelderland, . 

 North Holland, > 



Breskens, 



Scharrendijke, 



Ter Heide, 



Katwijk, . 



Kalantsoog, 



Zandvoort, 



Huisduinen, 



Wierum, . 



Makkum, 



Molquerum, 



Harderwijk, 



Huizen, . 



Enkhuizen, 



1 August, 21 Sept 



1025-1 

 1022-9 

 1021-8 

 1022-6 

 1023-8 

 1022-0 

 1024-5 

 1027-6 

 1021-1 

 1018-2 

 1008-3 

 1011-7 

 10140 



1025-7 

 1024-2 

 1019-1 

 1019-4 

 1022-2 

 1021-5 

 1022-6 

 1025-4 

 1018-6 

 1013-3 

 1007-3 

 1011-4 

 1013-6 



1 N< 



1025-9 

 1024-9 

 1025-2 

 1024-0 

 1022-8 

 1019-6 

 1023-4 

 1022-3 

 1016-7 

 1015-3 

 1010-2 

 1012-4 

 1015-9 



XX. — Essence of Turpentine. 



Dumas and Peligot infer from their experiments, that the essences 

 of turpentine, basil {Ocymum hasilicum), and of cardamoms (^Car- 

 damomum minus) are identical in their composition, which is repre- 

 sented by. Carbon, .... 63-6 



Hydrogen, . . . 11-4 



Oxygen, .... 25-0 



100-0 



XXL— NEW BOOKS. 

 Lehrbuch der Chemie und Pharmakologie fiir Aerfte und 



Thierarzte. 

 Band. 



Von C. G. H. Erdmann. 8vo. 1S36.— Berlin,, 1st 



