92 THE AMERICAN MUSEUM JOURNAL 
Vincent. The axe is of the “fish” pattern and is one of the largest 
examples of this form known. By exchange with the Museo Ethno- 
grafico of Buenos Aires the Department has obtained a collection of 
pottery and wooden objects illustrating the archaeology of the Province 
of Salta, Valley of Calchaqui, Argentina. From the Carnegie Museum 
of Pittsburgh has come, likewise through exchange, a series of 600 pieces 
of ancient pottery from Costa Rica and a small collection, including 
three very large earthenware jars, from Colombia. Mr. C. C. Vinton 
has sent in an extensive ethnological collection from Korea, obtained on 
a Museum expedition. 
Two relief maps of North America have been placed with the Bison 
group showing by means of dots of different colors the former wide 
range and abundance of the animal and its present meagre distribution 
or practical extermination. 
THE exhibit in the Central Hall of the Second Floor which shows 
the time of day and the change of seasons has been modified and ampli- 
fied so that now the four-foot globe representing the earth not only turns 
upon its axis once in twenty-four hours but also is made to revolve 
around the sun once a year with its proper motion and in its correct 
position. ‘he light of the sun is represented by an electric stereopti- 
con which casts a noon mark on the globe by means of the shadow of 
a line. This shadow at the same time shows the mean time for the 
longitude of New York City by means of subdivisions upon the equator. 
This exhibit has awakened a great deal of interest and is instructive 
in many ways additional to those mentioned. 
Tue exhibit on the ground floor illustrating the solar system has been 
altered so as to be more comprehensive and instructive. ‘The sun is 
now represented by an illuminated globe three inches in diameter, which 
brings the orbit of the earth just within the Foyer. The Foyer therefore 
now contains the whole of the orbits of Mercury, Venus and the Earth 
and part of that of Mars, while the adjoining exhibition halls contain 
the remainder of the orbits of Mars and parts of those of Jupiter and 
Saturn. ‘The orbits are represented by circles of wire on which the days 
and months are indicated and along which the planets, shown as lights 
of proper size, are moved from day to day in correct position. ‘This 
