HORTUS GRAMINEUS WOBURNENSIS. 347 



Experiments. — At the time the seed is ripe, the produce from 



a bog soil is — 



Produce per Acre, 

 dr. qr. lbs. 



Grass, 24 oz. The produce per acre - - 16335 



80 dr. of grass weigh, when dry - 36 7 nrt^o 19 n 

 The produce of the space, ditto - 172 3| 5 



The weight lost by the produce of one acre in drying 8984 4 

 64 dr. of grass afford of nutritive matter 3 > ifiP, ^^ (\ 

 The produce of the space, ditto - 18 5 



At the beginning of December, the produce 

 from the same soil was — 

 Grass, 25 oz. The produce per acre - - 1701500 



80 dr. of grass weigh, when dry - 40 7 8;^07 8 

 The produce of the space, ditto - 200 } 



The weight lost by the produce of one acre in drying 8507 8 

 64 dr. of grass afford of nutritive matter 3 2 7 Qqr> o ^j 

 The produce of the space, ditto - 21 3| 3 



The weight of nutritive matter afforded by the produce of one 



acre of the larger-leaved variety of fiorin, exceeds that of the 



present variety in the proportion of 4 to 3. 



The value of the lesser variety does not increase, after the time 



the seed is ripe, in the same proportion as in the larger variety. 



lbs. 



The Agrostis stolonifera latifolia, mown in December, af- 

 forded of nutritive matter . - - _ 1435 



The Agrostis stolonifera angustifolia, mown at the same time, 

 afforded only . - - . _ 930 



Which shews that the value of the variety latifolia exceeds, in 

 December, that of the angustifoUa, in the proportion nearly of 

 11 to 7. 



From the above details it is evident this common variety stands 

 next in value to the larger-leaved variety of creeping bent. It 

 appeared, from all the observations I could make on this grass 

 when growing in natural pastures, to be entirely neglected by 

 cattle while any of the superior pasture grasses presented a suffi- 

 ciency for a bite. I have examined pastures, in which this grass 

 abounds from the beginning of the season till the end, but never 

 could observe that any part of this variety of creeping bent was 

 touched by oxen, horses, or sheep ; and the lowest or moister 

 parts of the pasture, where this grass had exclusive possession. 



