1897] MICROSCOPICAL JOURNAL 101 



the best results are obtuined by placing- the jar coiitainiiiii- 

 a pint of milk into a tin vesj-el tilled with 3 pints of water 

 in such a manner that the water and milk are at about the 

 same level when the jar is supported about half an inch 

 from the bottom, ^^he water is then heated until it l)oiIs. 

 after which the milk is allowed to remain in the water for 

 15 minutes. The water should boil in not less than 25 

 minutes and the milk must be stirred continuously to pre- 

 vent the separation of the cream. 



Plants Growing Under Microscope. — Procure a little 

 Collomia seed. Take one of the seeds and with a ra^or cut 

 off a very tiny slice, place it on a slide, cover with a cover. 

 g-lass and place under the microscope. The instrument 

 must be in a vertical position. When it is well focused 

 and lig-hted, moisten it with a drop of water. The seed 

 will absorb the moisture and throw out a very larg-e num- 

 ber of spiral fibers, giving- the appearance of veritable 

 g-ermination. Beginners will find it easier if one applies 

 the moisture while the other looks though the instrument. 



Storax as a Mounting Medium. — Permanent prepara- 

 tions can be mounted in storax according to Dr. J. H. Piff- 

 ard if it is prepard as follows: The storax is liquified in 

 a water bath, then filtered throug-h two or three thick- 

 nesses of cheese cloth in a hot-water funnel and when cold 

 mixed with an equal weig^ht of xylol. Shake well several 

 times through absorbent cotton or Swedish fitter-paper, 

 and evaporateat agentleheat, to the consistencv of treacle. 

 P'inally, to each two parts of the fluid, add three parts of 

 napthalinc monobromide, and heat g^ently until a clear 

 amber-colored fluid is obtained. Probably, the refrac- 

 tive index of the medium should be broug-ht to 1,625 1)\- 

 adding more of the ingredient that may l>e found defi- 

 cient, and the product will then be found suitable foi- 

 work with the hig-hest powers. 



Walter White's Botanical Sections.— We ha\ e just re- 

 ceived from England a new supply of objects and we can 

 furnish at present, almost every number on the list. 



