301 
effect on insects’ eggs or hard chrysalises, on beetles with hard 
elytra, and on the vast class of hemiptera (true bugs), whilst 
hairy caterpillars and spiders of all kinds are proof against it. 
Hymenoptera, however, quickly suecumb to its effects. 
ACTIVE PRINCIPLE. 
The active principle of aee us flowers has been si ere 
by Messrs. Schlagdenhauffen and Reeb. An account of t 
research is given in the Pharmaceutical Journal (July 26, 1890, 
p. It is an acid soluble in alcohol, amylic alcohol, ether, and 
chloroform, which may be isolated by means of ether after rk 
been converted into an alkaline salt, and decomposed by tartari 
acid in aqueous solution 
When Agios acid was s aaa ouf sige hae at ? 
animals, it observed that the poison produced its effec 
two distinct : sts pee. In the first there was an moie nt m inus or 
less pronounced, proportional to the quantity administered ; in 
the second there was a complete prostration, accompanied always 
by paralysis of the lower extremities, which might disappear 
after a time, or be the precursor of a fatal issue, the respiration 
and circulation being affected only in the latter case. 
DCXXIX.—DIAGNOSES AFRICANA, XII. 
669. P I | C. H. Wright [Hypericacez ]; 
ad P. tenuifolium, Hook. fil., accedit, ged foliis membranaceis et 
nervis secundariis pancioribus di iffert 
Frutex 6-8-pedalis. Rami —Í nitidi. Folia eiie 
petiolata, ovata, acuminata, irregulariter crenata, basi cuta, 
-8- : 
ceolata, acuta, glabra, ME Petala ovata, obtusa, nigro- 
lineata, intus prope apicem pilosa, 4 lin. longa, 23 lin. lata. Disci 
glandule 5, breviter boat. Staminum filame nta 4—6-na con- 
nata, pilosa; antherm globose. Ovarium conicum ; styli clavati, 
staminibus paullo longiores. 
FRENCH Congo. Angoni, 70 miles east of Gaboon, Bates, 
559. 
670. Dombéya Johnstonii, Baker eoe ad D.schim- 
perianam, A. Rich., abyssinicam, magis accedit. 
Ramuli ides nee enc ae brevibus dico pallide brunneis 
dense persistenter vestiti. Folia cordato-orbicularia, poll. 
longa, crenata, integra vel obscure 3-5-lobata, utrinque dense 
pubescentia, lobis basalibus vel magnis imbricatis vel minoribus 
sinu basali aperto ; petioli 3-8 poll. longi. Umbelle cipum 
i 1—4 poll. dia 
ongi; pedicelli pubescentes, flore longiores, primum cernui ; 
— oblonge, pena calyce paullo breviores. Sepala lanceo- 
lata, 8-9 lin. longa, dorso dense pubescentia, flore expanso reflexa 
Petala cuneata, falas, imbricata, rosea, calyce vix longiora, 
