518 
DR. J. BARNARD DAYIS ON THE WEIGHT OF THE BRAIN 
obtaining the cubic contents in centimetres. There will be this advantage, that Dr. 
Weisbach’s observations were made upon the crania of young men only, soldiers dying 
in the Military Hospitals of Vienna, with which he was connected. His results will be 
subjected to the usual deduction of 15 per cent., and converted into their equivalents of 
ounces of brain, and the corresponding grammes. Our two Poles give a mean brain- 
weight of 47T4 oz., or 1336 grms. Dr. Weisbach deduces a mean internal capacity 
from his 25 Polish skulls of 1517-42 cub. centims. By subjecting this volume to our 
process we obtain a weight of brain of 47'21 oz., or 1338 grms., which is almost identical 
with the result of our observations, being but 2 grms. more. The result of Weisbach’s 
gauging of his 15 Russniak skulls, when reduced, is a brain-weight of 47 - 07 oz., or 1334 
grms., showing that ours is an unusually capacious one. 
19. Czechs . — Two skulls of men yield exactly the same mean brain-weight as the two 
Poles, viz. 47T4 oz., or 1336 grms. One of our Czech crania is unusually large. Dr. 
Weisbach’s mean of 28 Bohemian skulls does not exceed 45-32 oz., or 1284 grms. 
20. Magyar . — One man yielding a brain-weight of 45’03 oz., or 1276 grms. Dr. 
Weisbach’s mean of 29 men’s crania is 44-30 oz. of brain, or 1255 grms. 
21. Slovak . — This male skull affords a brain-weight of only 43' 78 oz., or 1241 grms. 
The mean deduced from Dr. Weisbach’s 9 Slovak men is also somewhat low, viz. 45-76 
oz., or 1297 grms.* 
22. Finns. 23. Russians. 24. Turks . — These three classes yield considerable brain- 
weights, viz. 48-31 oz., or 1369 grms., 50-28 oz., or 1425 grms., and 47-58 oz., or 1348 
grms. The Russians, which are the heaviest, are most probably represented by excep- 
tionally large skulls. 
25. Rumanyos, or Wallachians. — These people are not a branch of the Sclavic family. 
The 6 male crania yield a brain-weight of 45'97 oz., or 1303 grms. 
26. Gipsies of Wallachia. — These consist of 2 skulls of men and 2 of women. They 
afford an average brain-weight of the men of 43-93 oz., or 1245 grms., and of the 
women of 43-20 oz., or 1224 grms. Thus exhibiting an unusual uniformity in the two 
sexes, and also a marked diminution of brain-weight when compared to that of the 
Rumanyos, among whom they live. 
The general average of brain- weights of the whole series of 393 skulls of European 
Races, in unequal numbers as to sexes, about 3 males to 1 female, is 47-12 oz., or 1335 
grms., which must be regarded as a high average. 
Without attaching any more importance to it than it deserves, the order of the brain- 
weights of this series of European crania may here be stated, beginning with the highest 
and descending to the lowest. Russniak, one single example, a megalocephalic skull, 
Merovingian Franks, Germans, Russians, Frisians, Spaniards and Portuguese, Finns, 
Swedes, Italians and Turks, English, Dutch, Ancient Romans of Italy, Poles and Czechs, 
Irish, Lapps, Ancient Romano-Britons and Rumanyos, Ancient Britons, Anglo-Saxons, 
* Dr. Weisbach found the mean stature of 20 men of Slavic races to approach very closely to that of his 
German men, viz. 1678 millims. 
