1896.1 MICROSCOPICAL JOURNAL. 431 



Plants Growing Under the Microscope. — This is some- 

 thing- that we read of in most books on the microscope, 

 and althoug-h it is not by any means true plant growth, it is 

 very curious and beautiful. Procure alittle Collomia seed, 

 which may be had from seedsmen. Take one of the seeds, 

 and with a razor, or very sharp knife, cut off a very tiny 

 slice. Lay this slice on a slip of g^lass (an ordinary slide), 

 cover it with a tiny g-lass cover, and, the microscope being- 

 in a vertical position, lay it on the stag-e. If you wish to 

 incline the microscope, you must use a square g-lass cover, 

 and not a round one, and hold the cover to its place by 

 means of a very fine rubber ring-. Now, bring- the thin 

 slice of seed into focus, and then apply a drop of water to 

 the edg-e of the glass. The water will penetrate between 

 the g-lasses and moisten the seed, which will at once throw 

 out a very larg-e number of spiral fibers, g-iving- it the ap- 

 pearance of veritable g-ermination. Beg-inners will find it 

 easier to perform this experiment if one will apply the 

 water while the other looks through the instrument. A 

 sing-le drop is enoug-h. — Meyer Brothers Drugg-ist. 



BACTERIOLOGY. 



Bacteriuria as a Complication of Gonorrhea. — ( Wiener 

 Med., Revue Int. de Med. et de Chir.) Bacteriuria consists of 

 the presence of numerous bacteria in the urine which has 

 a nauseous and penetrating odor. The bacteria gain en- 

 trance either by catheterization, by immig-ration from 

 neighboring-org-ans, by fistula?, or by the lymphatic system. 

 The presence of gonococci enfeeble the resistance of the 

 mucous membrane, making- it an excellent soil for the 

 developement of these bacteria; the bacteria coli most 

 often causes these attacks of bacteriuria; the same bac- 

 terium is also the cause of gonorrheal infiamation 'of the 

 prostate; in such cases the bacterium coli comes from the 

 intestines. The bacterium coli can also produce a run- 

 ning- suppuration ; irrigations of silver nitrate are the most 

 effective means of treating these lesions of the prostate. 



