198 
Maclaurin presented ‘‘Newton’s Experi- 
ments and Contributions to Optical Theory.” 
In 1911 Professor Frederic 8. Lee lectured on 
“Seientific Features of Modern Medicine,” 
and in 1913, Professor T. H. Morgan sum- 
marized recent advances in the study of 
“Heredity and Sex.’ The Jesup lectures 
are being published by the Columbia Univer- 
sity Press. 
Since the last issue of the JouRNAL the 
following persons have become members of 
the Museum: 
Annual Members, Mrs. FrepEertc N. Gop- 
parRbD, Mrs. Everard B. Hopwoop, Mrs. 
C. D. Jackson, Mrs. Samuren W. Wetss, the 
Misses Leia S. Frissett, MArcaret W. 
Watson, His ExceLnuency, IRA NELSON 
Morris, Dr. Herrmann FISCHER AND 
Mrssrs. LatHroe Brown, G. E. CHAPrin, 
J. WARREN CuTLER, ALBERT DE Roope, 
SamuEL JACKSON, RosperT E. NOLKER, 
Emit T. PALMENBERG, FRANK H. PARSONS, 
WILLARD ScuDDER AND IF. B. WrpBora. 
“Men of the Old Stone Age’’ was the topic 
at the April 12th meeting of the Academy of 
Sciences. Professor Henry Fairfield Osborn 
presented some of the chief results of his 
synthetic work on this subject and made 
special acknowledgments of the codperation 
of the following archeologists, anatomists 
and geologists: Messieurs Abbé Breuil, 
Cartailhaec, Obermaier, MacCurdy, Nelson, 
MacGregor, Starr, Penck, Reeds. He exhib- 
ited a chart illustrating the successive ad- 
vances and retreats of the glacial ice in 
Europe and the corresponding succession of 
mammalian faunas and races of man. — Illus- 
trations of the skeletal remains of the palso- 
lithic races were then passed in review. 
Professor J. Howard MacGregor then 
exhibited his remarkably lifelike and accu- 
rate series of busts of prehistoric men. He 
explained the methods adopted in building 
up corrected models of the skulls, from casts 
of the imperfect original specimens, and in 
restoring the flesh, from data secured by 
dissection of recent types. Dr. A. Hrdlicka, 
formerly of this Museum and now of the 
National Museum, was present and took 
part in the discussion. 
ADMIRAL PEARy’s Arctic ship, the ‘‘ Roose- 
velt,”’ has been sold and after it has been 
fitted with oil-burning machinery and other 
improvements, will be used by the Bureau 
of Fisheries in the Department of Commerce 
THE AMERICAN MUSEUM JOURNAL 
and Labor in connection with the fisheries 
service in Alaskan waters. The “Roosevelt” 
was the ship used by Admiral Peary on the 
expeditions in which he reached the “farthest 
north”? record in 1906 and the North Pole 
in 1909, and was built expressly for the pur- 
pose in the spring of 1905. It is to be remem- 
bered that Apri) 6 marks the sixth anni- 
versary of the discovery of the North Pole. 
A LIFE-sIzE model of the beautiful Portu- 
guese man-of-war (Physalia arethusa), a 
remarkable product of the glass-blower’s 
and colorist’s skill, has recently been installed 
in the Darwin hall. The Portuguese man-of- 
war is not a single animal as might be sup- 
posed from its appearance, but a colony of 
animals in which the phenomenon of division 
of labor is most strikingly exemplified. One 
of the individuals in the colony is specialized 
to act as a float. The other individuals are 
attached to it, pendant from the lower surface. 
Some of them have mouths and feed for the 
entire colony; others are sensory in function 
and have no mouths; still others are armed 
with rows of stinging cells and form the 
offensive and defensive members of the 
colony; and still others can neither feed nor 
fight but are the reproductive individuals. 
The colony as a whole, the “ Portuguese 
man-of-war,”’ floats on the surface of the sea, 
especially in warmer regions, but is often 
brought north upon the Gulf Stream and 
drifts in upon the New England coast. Cer- 
tain of the individuals making up the colony, 
those armed with the most powerful stinging 
cells, extend as long retractile streamers into 
the depths of the sea, at times to a length of 
forty feet. These also act as a drag anchor 
and keep the head of the float to wind- 
ward. The coloration of the animal is strik- 
ingly beautiful, varying from deep cerulean 
blue through deepest purple to brilliant car- 
mine. In the West Indies it is often seen 
floating in large squadrons on the sea. 
Apropos of the ever-widening scope of the 
lecture work which is being carried on by the 
Museum’s department of education, it is 
interesting to note that a course similar to 
the Museum’s Saturday morning stories 
for the children of members was inaugurated 
this year in Cleveland, Ohio. Mr. George 
H. Sherwood gave the introductory lecture of 
the series which included lectures by Mr. R. 
W. Miner, Mr. R. C. Andrews, Mr. Ernest 
Harold Baynes and Mr. Albert H. Pratt, 
