424 Scientific Intelligence. 
Photography—Electric Telegraph.—Since Niepce, Herschel, Fox Tal- 
bot, and Daguerre laid ae ais et of Photography, year by year some 
improvement is made,—some advance achieved, in this most subtle appli- 
cation of combined scoveris in Photicity, Electricity, Chemistry, 
mngtion. Last se r Mr. Poitevin’s production of 9268 in relief, fo 
planets, of scientific and other phenomena. After referring to the diseove- 
ries in Electro-magnetism, the lecturer continued—Remote as such pro- 
found conceptions and subtle trains of thought seem to be from the needs 
the far-stretching en n be “ag into full ma one; bak the 
capital fact, viz: the rely of bringing as Ke = sete a 
be 
The powers aad benefits th — to jcosne for the human race can ut 
dimly and inadequately fo 
ogy.—After mead out a distinction between Affinity, which 
indicates an intimate resemblance, and Analogy, which indicates a remoter 
one, . Owen continued—The study of homologous parts of a single 
fem of organs—the bones—has ‘eal led to the recognition la the 
