Geography and Statijllcs. lor) 



Venal. The two lateral veffels proceed from one end of the 

 body to the other, and are joined by branches which form 

 a very beautiful tifTue when injected. The ventral and dor- 

 l'al velfels do not form a tifl'ue of the like kind. They only 

 throw out branches difpofed alternately in an oblique direc- 

 tion, and fubdivided in the ufual manner. The fecond is 

 placed exactly under the medullary cord of the ganglions, 

 from winch all the nerves proceed. It is impoffible to open 

 a leech without producing a great effunon of that blood. 

 Enough, however, remain.; in the veflels to be diftinguifhed. 

 Its colour is almoft the fame as that of the arterial blood of 

 the frog". 



NORTHERN GEOGRAPHY AND STATISTICS. 



M. Hammer, conductor general of the diocefe of Ajreer- 

 huus in Norway, who left all his property to the Royal 

 Norwegian Academy of Sciences, endowed alfo a foundation, 

 which has been confirmed by his Danim Majefty, and in 

 confequence of which a part of the money bequeathed is to 

 be laid out in printing his manufcripts, and for purchafing 

 natural curiofities, the productions of Norway. Another part 

 is to be employed in defraying the expence of travels through 

 Norway, and the following diftricts are in particular to be 

 explored : Neidcn, Powig, Peifen, Nordileldet, the White 

 Sea, and Dvmaan, the moft remarkable natural objects of 

 which muft be defcribed. Thcfe travels are to be conduced 

 on the plan propofed by Linnirus in the Norwegian Hou/'e- 

 hold Calendar. All remarkable objects and antiquities are 

 to be illuflrated with maps and drawings, and the journals 

 of the different travellers will be infertcd among the papers 

 of the fociety. 



Baron Hermelin, counfellor of mines, one of the richeft 

 men in Sweden, is now employed in preparing maps of 

 every province of that kingdom, which he means t'> publifh 

 at his own expence. He has already begun with Lapland 

 and the northern districts. 



ASTRO- 



