776 Figuring against Weeds. 
Annuals. Biennials. Perennials. Total. 
28 6 17 
Worst weeds 51 
12 48 94 
Indifferent weeds........ 22 9 121 152 
Totals . 84 27 186 297 
If we look up the pedigree of these pests it will be found that 
they are divided into eighty-seven (87) foreigners, which have come 
from abroad to infest American soil. The large balance of two 
hundred and ten (210) are natives and are weeds in their wild state 
or have made inroads upon cultivated land. Of the 87 foreigners, 
forty-four are annuals, that is, running through their whole life in 
a single season, twelve (12) are biennials, and thirty-one (31) are 
perennials, Twenty-eight of the eighty-four are in the worst 
class, thirty-seven in the bad group, and twenty-two belong to the 
indifferent order. A table of the imported species may be con- 
structed as follows :— 
Worst. Bad. Indifferent. Total. 
WGA Bocce 18 9 7 44 
Biennials 3 6 3 12 
Perennials 7 12 12 31 
Totals Bo 87 22 87 
Taking up the 210 native species in the same way, the table- 
stands as follows :— 
Worst. Bad. Indifferent. Total. 
Annuals 10 16 14 40 
Biennials E 6 6 15 
Perennials 10 35 110 155 
a a pomenpere 23 57 130 210 
From these tables it will be seen that of the worst class—which 
of course most interests us, there are twenty-eight foreigners to 
twenty-three native species. Itis no comfort to know that more 
than half of our most aggressive weeds have come, or been brought, 
to us from some other country. If there is any satisfaction 10 the 
thought, it may be here stated that some inoffensive sna 
plants have gone abroad and became dreadful pests in their new 
surrounding. In this way we compensate in part for the additions 
made to our list of weeds from European and other lands. 
