172 BOTANICAL GAZETTE. [ July. 
. immerse. In like 
im font apesics -atl aap oe the tet in ono, th ina place more 
. 
i first to study the in- 
he various forms. r. Jensen is the i te 
ee pie agents on the formation of the baptist By ee 
and his memoir is a very interesting and instructive on ieee 
appeared in the Botanisk Tidskrift, vol. xiii, and the transla Revue 
Bryologique, vol. xiv (1887), p. 38. 
6 i i laims to have reached 
. S. SCHONLAND, of the University of Oxford, c , 
the ag rocess of embedding delicate plant tissues in par 
80. that unsh 
ibbon method 
sae ag followoin the etanische Oa 
eager described essentially as Set in hs hae pan: Phi 5 
vo 
hermo- 
or keeping the temperature constant the Redes meptie 
regulator must be used. The embedding is done in t is ge 
: ining oF 
flooded with it to dissolve the paraffin. It is then ready for stalnime 
mounting in the usual wa; 
ose ‘ eman- 
quisites for ribbon section-cutting will find detailed accounts in i which 
uals on histological technique. The author adds that the of leaves one 
can be attained are almost incredible. In serial water pen 
can, not infrequently, obtain four to six sections through i 
and it is easy to get several sections through the gingy: ea 
when the embedding It will be obse 
method differs little from 
process. 
undoub * 
1Schénland used m 
1 will 
ethyl alcohol, the strongest 92 per cent., but ethy ve 
edly answer, and is commoner in this country. Osborn, in Al 
Gi. Whitman “ Methods of Research, ete.,"” Cassino, 1885. H. L: 
Mic. Jour., May, 1887, 
