ZOOLOGY A^TD B0TA2iT, MICBOSCOPT, ETC. 



173 



stain, the latter becoming only gradually red. Tte stairing bj hT.iro- 

 ch-loric acid alone was very distmct in all woods exani:i:ed except those of 

 SarrAucus. Jnglans, and Colutea, in which it was but slight. In Syringa 

 the bracheids were coloured blue-green by this reagent. Instead of hydro- 

 chloric acid, concentrated snlphnrie acid may also be used, when the 

 lignified cell-walls of plants which contain pBloroglacia are coloured 

 cherry-red. The red staining begins on the cambial side of the bast-bnndles, 

 ghowing that the chief seat of the phloroglncin is the leptome. 



,6 2!lD-:iiitiii?. izicI-idirLg' Slides, Cell.5_. PreHervative Tlzdds. &c. 



Medland's Poitable Cabinet.— 3Ir. J. B. Meila-i's c-ibi-e: (±2s. 29 

 and 30) is 11 in. x : '-'-■ •' c^ i-.. " ::!> ilj i-. hrrer tlii. :L- :: .-3^7 

 case holding one-hal; :_r i. .11: r : =.:>;?. I: : _: ii.5 six:;- -:.:--■: :.r 

 nine objects each. Z3,:i. ;-::.r 1= i-v-i :.: ::~ rr.;.s ::t :_v 1 1 ; i.: :-r s:;:e-£;.p 

 of the tray, whicl. is ^^e" a:— _ ::t :„r £u::-rri:_g --••'7.- '---l -^-^ --; ti-r 

 lid holding the whole nrnlT d: i.. WLen open the lid and front fall 



F;;-. 



F:;. S: 



back, forming a stand or table upon which to place the trays, which are 

 thns less liable to get displaced or npset than when placed among o&er 

 apparatus or upon the work-table. The designer, considers that the 

 advantages of size, compactne^ and the improvements OTer the ordinary 

 case strongly recommend it to mieroscopists and others who may reqnire 

 to carry a number of objects in a sniall space wiHi the least po^ihle 



risk of damage.* 



(8i MisceUaneouis Matters. 



Dissecting Pans.| — Mr. EL L. Mark recommends beeswa^ rendered 

 black with lampblack, as the best filling for dissecting pans, wlucb. should 

 be made of glass. The most conyenient size is 25 cm. by 15 cm., and about 

 5 cm. deep. The glass -fessels are first heated in water, the temperature of 

 which is gradually raised to near the boiling point ; the hot wax is then 

 poured in. If the surface become impaired the whole mass should be 

 remelted, or the flame of a gas-jet be turned on to the surface for a short 

 time. 



Ai-iizij'? Xi?r:;::ri:ai Record;. — Tl:s ':::!: :f rirrxs is niiT-ir" a:::r 

 general worker as well as the specialist by Mr. C. E. Ailing. 



» Ct EngL Medi^ xliv. (1886) p. 363 (2 figs.); SeL-6«gsip, 1886, p. 258 (2 figSL); 

 Nature, XXXV. (1886) p. 158. 



t Amer. NatmaL, XX. (1886) p. 915. 



