256 



ANNUAL REPORT OF NEW-YORK 



" On the whole, these weeds contain less nitrogen than the use- 

 ful grasses — a circumstance which may in part account for the 

 rapidity with which they spring up, even in poor soils, and the 

 difficulty of eradicating them. 



" The numbers in Table IX, were obtained in the estimation of 

 the nitrogen and fatty matters of the grasses in each instance 

 where a second analysis was made. 



TABLE IX. — 0)1 the dried specimens. 



NAME OF PLANTS. 



Nitrogen. 



1st. 

 Deter- 



2d. 

 Deter- 



Mean. 



m i nation mi Dution 



Tri'i'liuiu pr.itense perenne, 



Trifolium incarnaLuui 



Triioliu'.n medium, 



Trifolium procumbens, ■ 



Trif.liuin pratense, ... 



Trifolium repeiis, , 



Trifo!in!u medium, 2d specimen,. 



Vicia taiivii, 



Medicago iupulina, 



Vicia scpium, 



Aiith iXiiutlium odoratum, 



Poterium s;inguisorbia, 



Plant igo lanoeolata, 



Alopjcarus pratensis, 



Poa annua, 



•Poa pratensis. 



Annual ryegrass, 



Poa irivialis 



On bryehi"! sativa, 



Avena pubesconSj 



Bromtis mollis, 



■j-Dactylis glouierata, 



do seeds ripe, • . . 



Lolium perenne, 



Fe:<:uca d.iriu-cula, 



ArrherathiTiim a\'enaceum, 



Loliam italicum, 



Cynos'iru* cristatus, • 



Chrys uithemam leucanthemum, . . , 



Briza media, 



Avena flavcscens, 



IIolcus lanatus, . . . • ■ 



Kumex acetosn, 



Sinapis arvensis, ■ 



Bromus erectus, 



.3.022 

 2. 628 

 3.857 

 3.188 

 .3.602 

 9:^,7 

 002 

 752 



891 



1 



2. 



2. 



1. 



1 



1, 



1, 



1' 



3.64-t 

 .630 

 .84-0 

 300 

 ,943 

 .839 

 .633 

 .505 

 •508 

 2.872 

 1.265 

 2.710 

 2.100 

 3 . 538 

 1.880 

 1.924 

 2.005 

 1.613 

 1.842 

 I.ISO 

 1.014 

 1.186 

 1.818 

 1.235 

 2.080 

 1.488 



3 



3. 



3. 



2. 



2. 



3. 



3. 



3.019 

 2.582 

 813 

 .268 

 ,5.0 

 .U67 

 9i6 

 .690 

 .860 

 3.634 

 1.610 

 2.454 

 2.200 

 1 . 940 

 1.890 

 1.634 

 1.5(10 

 1.580 

 2.942 



1 



2. 



2. 



,250 

 ,740 

 168 

 3.734 

 1.850 

 1.895 

 2.075 

 1.57! 



3.020 

 2.615 

 835 

 22S 

 551 

 9.52 

 959 

 721 

 3.876 

 3.639 

 1.645 

 2.647 

 2.250 

 1.941 

 1864 

 1.633 

 1.502 

 1.544 

 907 

 2.S7 

 725 

 134 

 636 

 8.05 



1.91)9 



1.617 

 1 . 1 92 

 .900 

 1.170 

 1.813 

 1.192 

 2.113 

 1.465 



2, 

 1 

 1, 

 1. 



.040 

 .592 

 .744 

 .186 

 .957 

 1.178 

 1.815 

 1.213 

 2.051 

 1.476 



Oil. 



Ist. 2d. 



Deter- 1 Deter- 

 mination mination 



4. 088 

 3.736 

 3.577 

 4.716 

 3.632 

 3.811 

 4.491 

 3.102 

 4.011 

 2.8O0 

 3.430 

 3.870 

 3.700 

 2.675 

 3.412 

 2.6.59 

 2.460 

 3.664 

 3.087 

 2,294 

 2.144 

 3.289 

 1 545 

 3.233 

 3.166 

 3.165 

 3.064 

 3.5^5 

 3.283 

 3.046 

 2.546 

 3.367 

 2.035 

 2.627 

 3.425 



4.096 

 3.724 

 3.555 

 4.617 

 3.710 



4. 

 5. 

 3. 

 4. 

 2. 

 3 



3. 

 2. 

 2. 

 3. 

 2. 

 2. 



013 

 044 

 029 

 110 

 990 

 400 

 4.114 

 3.670 

 2.620 

 425 

 ,596 

 000 

 668 

 930 

 467 

 2.090 

 3.000 

 1.573 

 3.108 

 3.511 

 3.219 

 472 

 500 

 714 

 970 

 680 

 710 

 357 

 728 

 129 



3. 



^ • 



3. 

 2, 

 2. 

 3. 

 2. 

 2. 

 3. 



Mean* 



4.092 

 3.730 

 3 . 566 

 4.666 

 3.67J 

 3.912 

 4 768 

 3.065 

 4.060 

 2.895 

 3.415 

 3.992 

 3.635 

 2.647 

 3.418 

 2.627 

 2.230 

 3.666 

 3.008 

 2.3s0 

 2 112 

 3.144 

 1.564 

 3.170 

 338 

 192 

 273 

 542 



3 

 3 

 3 

 3 



3.498 



3. 

 2. 



.008 

 .613 

 3.359 

 2.196 

 2.677 

 3 327 



Timothy, or Herds Grass, f OrcLard Grass. 



