m a select class of them only, one from which the unprolific
are constantly weeded, and regularly disappear; and he thus comes to the
conclusion, that the peers are 'an eminently prolific class!' Just
as though a farmer should compute the rate of increase; not from the
quantity of seed sown, but from that part of it only which comes to
perfection, entirely omitting all which had failed to spring up or come
to maturity. Upon this principle the most scanty crop ever obtained, in
which the husbandman should fail to receive 'seed again,' as the phrase
is, might be so 'counted' as to appear 'eminently prolific' indeed."

If we understand this passage rightly, it decisively proves that Mr
Sadler is incompetent to perform even the lowest offices of statistical
research. What shadow of reason is there to believe that the peers who
were alive in the year 1828 differed as to their prolificness from any
other equally numerous set of peers taken at random? In what sense were
the peers who were alive in 1828 analogous to that part of the seed
which comes to perfection? Did we entirely omit all that failed? On the
contrary, we counted the sterile as well as the fruitful marriages of
all the peers of the United Kingdom living at one time. In what way were
the peers who were alive in 1828 a select class? In what way were the
sterile weeded from among them? Did every peer who had been married
without having issue die in 1827? What shadow of reason is there to
suppose that there was not the ordinary proportion of barren marriages
among the marriages contracted by the noblemen whose names are in
Debrett's last edition? But we ought, says Mr Sadler, to have counted
all the sterile marriages of all the peers "whose titles had become
extinct during the period which our counting embraced;" that is to say,
since the earliest marriage contracted by any peer living in 1828. Was
such a proposition ever heard of before? Surely we were bound to do no
such thing, unless at the same time we had counted also the children
born from all the fruitful marriages contracted by peers during the same
period. Mr Sadler would have us divide the number of children born to
peers living in 1828, not by the number of marriages which those peers
contracted, but by the number of marriages which those peers contracted
added to a crowd of marriages selected, on account of their sterility,
from among the noble marriages which have taken place during the last
fifty years.