1883 | Proceedings of Scientific Socteties, -> 463 
where there were no red ants, were hard to find where the latter 
were common. An attempt to introduce the red ant into a city 
yard, failed through the attacks of the common pavement ant, 
Tetramorium cespitum. 
Aug, 15—Mr. Meehan exhibited some flowers of Helianthus 
mollis, and informed the academy that’ out of sixty-eight flowers 
in his garden, all but two faced south-east, although to so face 
they had to make a circuit. 
Aug. 22.—Dr. Leidy stated that a parrot, eighty years of age, 
required the food to be placed in its mouth, as was the case with 
pigeons which have been deprived of their brains. That mam- 
mals lived longer before man interfered with them, was shown by 
the wear of the crowns of fossil teeth. 
Sept. 5—A paper entitled “ Conchologia Hongkongensis,’ by 
S. W. Eastlake, was presented. 
sO r was presented from Mr. R. E. C. Stearns, 
upon the verification of the habitat of Conrad’s Mytilus bifurcatus 
Mr. Meehan stated his belief that the want of trees upon the 
prairies was due to nothing but the annual Indian fires; he be- 
lieved the Indians existed prior to the recession of the lakes of 
€ prairie region ; his remarks applied especially to Illinois ; Pro- 
>or Lewis stated that evidences of glacial action abounded in 
Illinois, while there was no evidence that man was pre- glacial. 
4 Leidy described Acyclus inquietus, a rotifer with a finger-like 
Process instead of ciliary disks, and gave particulars of other 
rotifers without rotary organs. 
2 Pt. 26—Dr. Leidy presented a paper entitled “ Rotifers 
without rotary organs.” 
acs, 3—Dr. Skinner remarked that the organs of offence of 
a of Papilio, usually believed to be solid, is really hollow, 
ns in and out upon itself. Dr. H. Allen spoke upon the asym- 
mae of the nasal organs, exhibited principally by the septum, 
Ich in most human skulls is deflected ; a portion of the lining 
Mr. M e has an erectile character, which is probably protective. 
sess eehan stated that at Atlantic City he had closely examined 
birds ae on the sand, usually believed to be the tracks of 
ök er had found that they were due to the action of water 
Cis. tenanted by colonies of Hippa talpoides. 
10.—Drs. Wood and Formad presented a paper upon the 
vegi of diphtheria, and the Rev. H. C. McCook another upon 
Snares of orb-weaving spiders. Dr. Wood stated that the 
per o maceous plant “ Remigia,” the bark of which yields two 
ve Snt. of quinine and.a peculiar alkaloid known as cinchonanine, 
Bü ably capable of cultivation in many parts of the South- 
See and in California. The Rev. H. C. McCook described 
he eee ol Epeira, Æ gemma from Colorado, £. conifera, E. 
: D from New Hampshire, and Æ. dicentennari@. 
~ 17—Mr. Meehan stated that an isolated Ginko tree, in 
TE Eie. v- a 
