468 SCIENCE [N. 8. Vou. XXXV. No. 899 
Crustaccansmeaeeeeeorcericri rect 5,600 lithic animals, and a few Neolithic shards. This 
Arachnid Sime aeeriareeiticrr eri 4,000 fragment was found, associated with a right ulna, 
MEMENTOS GoogacoocnodoneDoscoodue 800 and a small shard of crude workmanship, in a 
IENSAOE: cay comodo o be Kao doDOODOeOuTS 200,000 bottom layer of clay, and covered by a distinct 
WORN oocovcoodcoosoobvoDoggoorCS 6,300 layer of loess, with stone fragments from the roof, 
IIOMMOCAANS soascgoocb0sc00d0c0cKn0 2,370 among which were imbedded bones of the ox, 
Coslenteratesiieeeet eerie 3,000 sheep, horse, etc., also many pieces’ of a human 
SHOOMEES oop ossococoocccboccocconce 600 skeleton with worn teeth, as in the American abo- 
TEROWOZAOD, socoosco0scgcco0ca0ns 900 4,130 rigines. The results of the detailed anthropometrie 
273,220 measurements, of which 37 were taken, conform 
An estimate of the number of living species known 
at the present time (1911) gives the following 
results: 
Nipmimme@lky soooccocaussaeceasus0ad. 3,500 
IB “Godaccocuns0cds 0D DD0000D00000 13,000 
INGOHW GS cooooccooovdavvccgsgue0ce 3,000 
ANTES, Gooccoonacccane0Dee00ND 1,400 
SHISH OS! ecrareanscveyetocsne (ole ever suruci shee sleveremetelie 13,000 
WN UMNOMIES sagecccdcasabbcoo9adb000 1,300 
IOUS) goageoo0edcoscKbo00000000 61,000 
CHUBTOCHIMS oococcogpebon000DDCK0" 16,000 
ATACGMIGE ooss50000000000000D00000 16,000 
WiyaAAVDOES coceoosccadc00ceD0000000 2,000 
INNES Ooo daden oA OOUoM SD oGd eS 360,000 
ASME coassoooodc}ooob oo bob oode 4,000 
IBIN/OAOE), cooodocacoccnsodaga0gecD00 1,700 
IROWOUNS coscocooaccccc0ndanDdocKe 500 
Nemathelminthes ..........-.....-. 1,500 
Platbel minthesie eerie eeieicceeicte 5,000 
TEMMMOTASNY sosooso0nds50050000005 4,000 
Cmlenteratesseereeeecioe eee ciericn 4,500 
SPONGES oocoocaorods0d00000c000000 2,500 
TROIOZOD, onccdcscooccgcgendoodoouCS 8,000 
522,400 
Some Changes in the Nerve Cells of the Bee during 
its Life Cycle: W. M. SMALLWoop, C. G. ROGERS 
and RutH L. PHILLIPS, Syracuse University. 
Ecological Observations in British Guiana and 
Brazil: Henry E. CRAMPTON, Columbia Univer- 
sity. (Illustrated with lantern slides.) 
An Early Human Cranium from Unterlesece near 
Trieste: Harris HAWTHORNE WILDER, Smith 
College. 
A fragmentary human cranium was exhibited 
which was excavated during the past summer in a 
cave in the small Slavie village of Unterlesece, 
15 kilometers east of Trieste, Austria. The cavern 
is a mere cleft, not offering sufficient headroom 
to allow one to stand, or even sit, except at the 
very end, and could not have served for a dwelling. 
The deposits, therefore, consist of the things that 
have washed in and lodged in the hollows of the 
floor. They consist mainly of the bones of Neo- 
closely to certain other ancient skulls of the 
sapiens species, especially those of Egisheim, 
Cannstatt, Brunn, I. (1885), and probably Tilbury 
and Sligo. While, however, these latter are pretty 
definitely Quaternary (Solutrean, Magdalenian), 
this specimen, as dated by the shard and the gen- 
eral character of the remains in the cavern, must 
be either Neolithic or Transneolithie (Campignyan, 
Tardenoisian). 
Evidence of Evolution in the Mechanism of In- 
heritance: MayNarD M. MeEtcaLr, Oberlin Col- 
lege. 
In some, perhaps in all, of the higher animals 
and plants the chromatin consists of discrete par- 
ticles of different functions in physiologic activity 
and inheritance. These particles are grouped into 
chromosomes in which, in some species—perhaps in 
all—they form linear aggregates. There is an 
elaborate achromatic mechanism of mitosis which 
aids in securing the distribution of halves (?) of 
each discrete particle of chromatin to each of the 
two daughter nuclei. In many plasmodrome pro- 
tozoa (perhaps in some stage of their life history 
in all of them) the nucleus contains a caryosome 
with a definite caryole and an outer membrane 
delimiting it from the peripheral zone of the 
nucleus. New granules of chromatin continually 
form in the caryosome (apparently at the caryole), 
wander to the caryosome membrane, after a time 
break through this into the peripheral zone of the 
nucleus, through which they migrate to reach the 
caryotheca. Many of these granules in time break 
through the caryotheca into the cytoplasm as chro- 
midia, there to be dissolved. Apparently any of 
the granules so formed in the nucleus may become 
chromidia. The most careful study of these nuclei 
shows no indication of division of the chromatin 
granules within the nucleus during this formation 
of chromidia. Whole granules seem to be thrown 
off. Such a condition seems incompatible with the 
existence of a series of ‘‘determiners’’ in the 
nuclei of plasmodroma. The chromatin seems 
rather more homogeneous, each particle having the 
