Architecture.— African Expedition, 231 



. We have not yet seet) tlie report of this analysis, which, we 

 . find, is from Mr. Hume of Long Acre, to whom samples of the 

 water were sent from Yorkshire. The general result, however^ 

 we can now iav before our readers. He found, tliat grea: purity 

 is one of its most distinguishing properties ; that as far as the 

 incomplete analvsis of the Malverne Well, whicli has long been 

 published, will allow of a comparison, the Bridlington stream 

 is not less pure ; that ultliough this stream is so nearly con- 

 nected with the sea, under which its whole vicinity is placed 

 twice a-dav, vet it is altogether exempt from m.uriate of soda, 

 from anv kind of sulphate, and from magnesia. According to 

 Mr. Hume's experiments, this ebbing and flowing stream is very 

 little heavier than distilled water. It contains no other aeriform 

 substance than carbonic acid. The solid contentsof a wine-gallon 

 amount to 13 grains and a fraction ; and these consist of 



Carbonate of liine 9.625 



Miniate of lime 3.750 



Silex and a little oxide of iron, about •125 



ARCHITECTURE. 



It is a fact deserving the notice of architects, that the resist- 

 ance of any species of stone is not in proportion to its gravity. 

 M. Gauthey has made a variety of experiments on the subject ; 

 and the most remarkable contrast which he observed is between 

 a sort of stone dug at Caserta in Italv, and white freestone. The 

 former of these is heavier than the latter, and vet it is found only 

 to support half the weight. The following is the resistance of 

 certain species given in round numbers, their specific gravities 

 diminishing. 



AFRICAN r-XPEDlTlON. 



The journal of Captain Tuckey, which is now in the course of 

 publication, does not, we understand, hold out the least encou- 

 ragement to prosecute the researches into that part of Africa 

 which he visited. Beyond the determination of a geographical 

 problem, there is not a single benefit, it is said, to be derived. 

 The country does not produce any thing of advantage to a Eu- 

 ropean merchant. The inhabitants, who are represented as of 

 the lowest scale of human beings, have nothing to offer in ex- 

 change. The soil is hard and sterile : from tiie river Congo to 



P 4 the 



