RECREATIONS WITH THE MICROSCOPE 



349 



PHOTOMICROGRAPHS OF A FEW DIATOMS TO SHOW VARIED PATTERNS 



I will merely look at the "dots" on 

 Pleurosigma angulatum, one-fifty-two- 

 thousandth of an inch apart, and verify 

 the statement if our machinery and 

 skill will do so. Anyway, we wonder at 

 "the infinitely little," as shown in this 

 small specimen of our cabinet. Do not 

 be envious for you can find diatoms in 

 ground, salty or fresh water areas, in 

 every pool, in polishing powders like 

 Electro-Silicon and Sozodont, on the 

 piers, pilings, on the seaweeds, in the 

 water at the bottom of the oyster cans, 

 in fishes' stomachs, from the Arctic to 

 the Antarctic, from the southern Pole 

 to the Pacific, from Richmond, Virginia, 

 to Monterey, California, from Cuxha- 

 ven, Germany, to Sweden and back to 

 New York. You can make a single ob- 

 ject slide, a strewn specimen, write 

 your name, print a star, or place in 

 alignment and photograph their names 

 under or mix in the scales of moths or 

 butterflies in mosaic patterns. Don't 

 sneer — bigger folks than we have spent 

 years to learn them. Remember M61- 

 ler, Thum, Rinnbock, H. L. Smith, A. 

 Schmidt, W. Smith, Van Heurck, J. 

 Tempere, Kitton, Mills, Brun and Tem- 

 pere, Bailey, Castracane, Cleve, Ed- 

 wards, Gregory, Witt, Wolle, Boyer, 

 found diatoms their master. 



Names of Friends Wanted. 



"The Scientists' and Naturalists' Di- 

 rectory," 1914, has just been issued by 

 S. E. Cassino, Salem, Massachusetts. 

 This is some help but we miss a good 

 many names of old friends and some 

 new ones. Send us names of friends 

 who are interested in microscopical 

 study and any of the allied branches. 

 Let us plan for the opening of spring 

 and see where volvox can be found— 

 fresh-water shrimps, brine shrimps, 

 polyzoa, fresh-water algae ! 



The "British Medical Journal" notes 

 that as the result of the age-long high 

 cultivation of the soil of Belgium and 

 northern France, wound infections 

 from the earth of this region are dif- 

 ferent and more dangerous than those 

 encountered in previous wars. 



A garden is a beautiful book. Every 

 flower and every leaf is a letter. You 

 have only to learn them . . You 

 do not know what beautiful thoughts 

 grow out of the ground and seem to 

 talk to a man. — Phil Robinson. 



