1897] MICROSCOPICAL JOURNAL 101 



the best results are obtained by placing" the jar containing- 

 a pint of milk into a tin vessel 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. The w^ater is then heated until it boils, 

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

 IS 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 razor 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 wall find it easier if one applies 

 the moisture while the other looks thoug-h 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 through tw^o or three thick- 

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

 mixed with an equal w^eig-ht of xylol. Shake well several 

 times through absorbent cotton or Swedish fitter-paper, 

 and evaporateat ag-entleheat, to the consistency of treacle. 

 Finally, to each two parts of the fluid, add three parts of 

 napthaline 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 bv 

 adding more of the ing-redient that may be found defi- 

 cient, and the product will then be found suitable for 

 work wnth the highest powers. 



Walter White's Botanical Sections. — We have just re- 

 ceived from England a new supply of objects and we can 

 furnish at present, almost every number on the list. 



