FEBRUARY 22, 1901. 
The Classification of Glands: Dr. Mrvor, 
Boston. (Read by title.) 
Contribution to the Question of Fisswral Inte- 
grality of the Paroceipital ; Observations on 
100 Brains: Mr. Sprrzxa. (Illustrated by 
drawings.) 
Examination of 100 brains in the anatom - 
ical laboratory of the College of Physicians 
and Surgeons, New York City, yielded re- 
sults similar to those of Professor Wilder. 
The question of the integrality, with the 
hypotheses of Cunningham, Wilder and 
Parker, are briefly discussed. The writer 
inclines to the opinion that it is not an in- 
teger, but a partial and modified segment 
of the simian exoccipital; and, further, 
that its confluence with, or separation from, 
the parietal should be regarded as 0 sec- 
ondary significance and importance. 
The Mesial Relations of the Inflected Fissure. 
Observations on 100 Brains: Mr. SprrzKa. 
(With about 60 illustrations. ) 
The chief points are: (1) the normal 
position of the inflected fissure on the 
meson is caudad of the cephalic limb of 
Wilder’s paracentral fissure in _ other 
words, its mesial portion indents and partly 
lies within the paracentral lobule (or as 
Broca prefers to call it, ‘oval lobule’). (2) 
There is considerable confusion in modern 
encephalic literature concerning the synon- 
ymy of the inflected fissure. The most 
erroneous statements come from Eberstal- 
ler, and consist in a misinterpretation of 
Broca’s ‘incisure pré-ovalaire’ and Schwal- 
be’s ‘sulcus paracentralis,’ with the ‘in- 
flected fissure’ of Lussana and Wilder, ‘ X- 
fissure’ of Benedict and Flesch, or ‘ sulcus 
preecentralis medialis’ of Hberstaller and 
other Huropean writers. Broeca’s and 
Schwalbe’s fissure corresponds to the ce- 
phalic limb or limiting ramus of Wilder’s 
paracentral. (3) The condition presented 
in the mulatto brain described by Wilder 
(see Figs. 4766 and 4772 of his article, 
SCIENCE. 
295 
Handbook, Vol. VIII., 1889) is anomalous 
and rare, since the inflected appears wholly 
without the paracentral gyrus, and there- 
fore cephalad of Broca’s ‘ pre-oval incisure ’ 
or Wilder’s cephalic paracentral limb. 
The explanation appears to be that the ce- 
phalic limb is obliterated, while simultane- 
ously one of the intraparacentral elements, 
of which there seem to be several, has 
effected a-junction with the paracentral 
stem, and thus appears, at first glance, to 
be a well-defined cephalic ramus. 
The Brains of Two Distinguished Physicians, 
Father and Son; « Oomparative Study of 
their Fissures and Gyres: Mr. SprraKa. 
(Illustrated by drawings and _ photo- 
eraphs. ) 
Discussed by Drs. Lamb and Huntington. 
The paper { cats carefully and at length 
of the brains 0. Jr. Edouard Seguin and his 
son, Dr. Edward C. Seguin. The learning 
and progressiveness of these men are well 
known in the educational and scientific 
world. Both were interested in the study 
of idiocy and medical thermometry ; the 
father was especially instrumental in in- 
troducing the metric system into this coun- 
try, while the son, as one of the pioneers of 
American neurology, made many valuable 
contributions to the pathology and thera- 
peutics of nervous diseases. The brains 
show a general similarity and refined de- 
velopment, but with differences as puzzling 
as profound ; and many interesting features 
appear in the comparison. So far as the 
author knows, this is the first instance in 
which the brains of blood relatives have 
been compared and described. 
Method of Utilizing Frozen Sections for Class- 
Demonstrations of Visceral Anatomy and the 
Epiphyses: PROFESSOR PRIMROSE, Toronto, 
Canada. 
The exhibition of lantern slides was a 
series of photographs made from sections 
through the trunk and extremities of chil- 
