ON “QUIET” DAYS DURING THE ELEVEN YEARS 1890 TO 1900, ETC. 
383 
The values of the a, 6, c constants were really calculated to at least one figure 
farther than appears in the tables, but the retention of the extra figure seemed more 
likely to mislead than to serve any useful purpose. It would have been more logical 
to have similarly restricted the values of the angles, but I have followed the example 
of the annual Greenwich Tables and given them to minutes. When it comes to 
comparing one season or one year with another, the minutes may possibly possess a 
real significance, but the uncertainties in tlie monthly data represent degrees rather 
than minutes. 
