86 
REPORT—1847. 
the \hrvK of the Callidium bajulum of Fabricias. The timber was of Norwiy fir, lol 
the msKto were supposed to have been derived, through successive generatioiii,Ir«ii 
originally imported in the timber. These lar>'a; were found feeding udoq the 
very heart of the wood, which was quite honey-combed from their attseks: eiler. 
i^ly me wood was still sound, so as to deceive the eve and cause no snspidood 
the nusctuef that was going on in the Interior. 
On the Plant tehich yieids Gxdta Percha. 
By Edwin Lankester, 3LD,, F.R.S. 
TOs plant is a tree, a native of Singapore, Johore and Coti,alsoattlttioBth-ast 
?• Sarawak. From an examination of the leaves alone the i«t* W. 
Ill' .K 5“ supposed it to belong to the SajKJtads. The Rev. E. White, who W 
* II fruit, which consisted uf a calyx with six sepals, a nonopetii- 
twelve stamens,and a auperior ovarv, refenedittoete 
^ .r™"' examination of a plant collect^ bvMr.JoWiifliiit 
with of Lancfwter, the author could not reconcile the pint 
tn »i • her of tbcw orders. Sir William flooker had rd'erred it totheSajwtshi^ 
Mr T Dassia*. Small portions of the wood of the trw had beea 
in I*n« • * which it appeared that the percka \tbs dcposilrf 
in the wood of the tree. It was first iotroduced to the notice of the Britai 
jmiu c by Dr. Mtmirgomm y, who hud observ ed it to be used bvtlie Malays forraskii? 
this had however been long uapoitediiito 
varisn’... nf'Vn '.I't whips and elastic sticks, which had been regaritJ u 
caoutfhn.,,. In chomicnl composition giitta |iercha was idential will 
atfliniin ' tnoBt remarkable jihyeicnl pnipcrty was that of liefomingguiWtoft 
“nV h rS>?ii‘ -I without being I any waj^dhesive. A 
•nlnhlK in wth f * F^*™hivc* hardness. It Is iusolnblc in water and aleoW. Iw* 
hJ^ iuluJfc ^hc volatile oil*. As the supply ofihis subriuicfL* 
'*hp probably very extensive. The Malays use it for mwr 
thi* count/v it lift I bone. The Chinese use it for sticks and wbi[M. b 
makioff Ti^l-hanni employed with success as a substitute for k«litr m 
to which leadier Jfl ' *'V- ^hua it could be probably employed for any other pwpoK 
derodTt Vu^ pntpertynfsoAcning by heat without stielmga..- 
wood. Lcl Oil tCl’fufp^oSoSg'! copyiog 
On the Vitality „f Potato Seeds. By John D. Murray. 
potatoes, hi ®y garden, which had produced »cr<¥®f 
crops for several venn^af? ‘*^^*** eighteen inches, and after bearing 
which was kent rnm l turned iuto a flower ganteu and covered wifii i"*' 
^iKht oT^ne y?ars®^^S having been kept as a flower g>ri« 
purpose oaais had it ® kitchen garden, and for 0** 
i monthX wSn eighteen inches deep and sown wi&i beet^wol. A^t 
hlc numbeftperhans thirt°^ 1”^ thinning the beet-root, I observed that aroasiW*- 
spread irregularly spelling potatoes had sprang up. Thev«« 
hect-root.^t the srreatev*^n^ ^ ® a few being in the rows wi* ' 
them (ab^t mtervals between the drills. Wien I ImI 
•idcrable van ?rTnTJl‘‘1 ^■^rv healthy, and exli.bi«d«*' 
duccof seed from the rr" leaves. I have no doubt that 
ground, and thesewl hnv^^' "v which had been allowed to rijKnoa 
until brought acaio tn ° eighteen inches deep had rernaia^ danaaf* 
ugiit again to the surface by the trendiing this spring. 
a recently received perfecl specimens of this pbnt f»m 
c»f iU bcloSrt” ? bouiiy. Vrecw N* 
JP ff 0 tht. biipotads, and being a species of the genus Itonam/ia, 
