366 The Progress of Science Abroad. [July, 



spirits present ? ' was quite superfluous. We sat more than five 

 minutes in silence, and I could feel the poor fellows tremble as they 

 sat close up to me. Then the shriek was repeated, but we saw the 

 spirit that made it — a jet of steam — and my boys were encouraged."* 



The crater may be correctly depicted in the plate, but it is not 

 well executed. 



On technical subjects we have beautifully illustrated papers on 

 " The Land Snails of New England," by E. S. Morse (Nos. 1 & 2) ; 

 " The Moss Animals or Polyzoa," by A. Hyatt (No. 2) ; " The 

 American Silkworm," by L. Trouvelet ; also, " The Fossil Keptiles 

 of New Jersey," by Prof. E. D. Cope (No. 1) ; " Winter Notes of 

 an Ornithologist," by J. A. Allen (No. 1) ; and "The Fertilization 

 of Flowering Plants." 



The leading men of science in America are amongst the contri- 

 butors to the ' American Naturalist,' and it is in every way worthy of 

 the great nation which it is in tended to interest and instruct. 



And now we must close this brief notice of a few of the pam- 

 phlets and periodicals which find their way to us from every quarter 

 of the globe. The motley collection may have induced us to smile 

 a little over their appearance, but not the less do we value their 

 contents. They betoken a growing spirit of research all over the 

 world ; and the very delivery of an Inaugural Address in Valencia, 

 and the publication of a charming popular periodical on Natural 

 History in Salem, Mass., are evidences of the spread of scientific 

 knowledge ; of an increasing taste for the study of nature and her 

 laws ; and we should feel grateful to Providence, that, through this 

 interchange of thoughts between nation and nation, between mind 

 and mind, we are permitted to obtain a glimpse of an ever unfolding, 

 ever spreading Wisdom, destined one day to illuminate the whole 

 world. 



* P. 22. 



