828 
MR. F. C. PENROSE ON THE RESULTS OF AN EXA:^tINATION 
It will be seen from tlie above list that the dates resolve themselves almost 
entirely into spring and autumn festivals^ as if for intercession for a favourable harvest' 
to come, and for thanks for the harvest granted. 
Block plan of the two principal temples of Minerva on the Athenian Acropolis. The northern, which 
was the more ancient of the two, appears to have been oriented so as to observe the Pleiades 
heliacally about B.c. 1500. The southern temple, which, occupied part of the site of the present 
Parthenon, had a more northerly orientation so as to follow the more northerly declination of 
the same star group. 
Fie-. 2. 
Rhamnus. 
The two temples at Rhamnus, having the same cult, showing that the northern of the two, which was 
bnilt later than the other, had the more southerly orientation. In this case, a star, Spica, 
which was changing its declination from north to south, had to be followed. 
