INSTI^U OTIC) N S. 
In tlio./Z7’sf colinnn sliould l>e stated tlio exa(^t dat(3 
when each kind of bird was fii'st soon. This entry 
should he made on the day the bird arrives — not 
from memory afterwards (gene7xil statements sncli 
as ‘‘late in March,” “early in April,” etc., are of 
no value). 
In the second column sliould be stated, with as 
nincli exactness as possible, tlio number of each 
kind of bird observed during the day it was first 
seen. 
In the iliird column should be stated tlio date 
when the same kind of bird was next seen — whether 
this happens on the very next day, the iiext week, 
or not till a month later. 
In the foLirfh column .should be stated the date 
when the bird becomes common. Some birds come 
in a body and are common from the day of tlieir 
first arrival, while others straggle along and are 
not common for a month or more; and others still 
are never common. 
In thej^/^7i column should be stated the last date 
when the bird was observed. In the SPRING 
MIGRATION this column will remain vacant in 
those species which breed in the neighborhood, as 
it can be filled only when cdl the individuals go 
North. In the FALL MIGRATION it should be 
filled in those species which pass farther South, but 
must remain vacant in those which spend the winter 
in the vicinity of the Station. 
In the sixth column should be stated whether the 
.sx^ecies is abundant, common, tolerably common, or 
rare. 
In the seventh column it is necessary only to say 
yes or no. 
In filling schedules xdease use ink, not x^encil. 
