156 THE STRUGGLE FOR LIFE. 



her, she expected to " see a thing like a monkey," pitifully 

 degenerate, worse than a toy terrier or a Chinese pug-dog ! The 

 peasantry of Spain, on the contrary, are a race full of fine quali- 

 ties, though, as might be expected, they are extremely conserva- 

 tive and unprogressive ; probably, the finest Celtic race to be 

 found in the world, with the exception of our own Scotch 

 Highlanders. 



The curious facts as to the imm.unities of certain races or 

 certain animals from disease form only a portion of the various 

 lines of interesting research pointed out by Dr. Clifford Allbutt to 

 pioneer workers. The whole article will richly repay perusal, 

 especially by those interested in organic chemistry, that fascinat- 

 ing, though infinitely difficult science, which promises to reveal 

 the great secret of secrets — the Nature and Origin of Life. 



Uo prepare Sections ot Spines ot lEcbinns tor 

 /nbicro. Slices* 



Mr. Hyatt described to the members of the New York Micro. 

 Society his method of preparing sections of spines of Echinus^ 

 saying that it is much easier to grind down a number of such 

 sections at one time than to grind one singly. He fills a glass 

 tube with spines, cementing them in place with balsam, and then 

 by means of a circular diamond-saw slices both tube and con- 

 tained spines into thin discs. A number of these discs are 

 cemented by balsam to a glass slip, and all are ground down 

 together. In order to successfully turn them over to continue the 

 grinding, they are cemented to the first slip with thin balsam. 

 The slip to which they are to be transferred is supplied with thick 

 balsam and inverted over the sections, whereupon, with proper 

 manipulation, the sections will leave the first slip and adhere to 

 the second. He mounts seven or eight sections of spines under 

 one cover, returning them to their desired positions, if displaced 

 in mounting, by inserting under the cover a needle ground fiat 

 and very thin upon an emery-wheel. 



