Composition of JFaters of Land-Drainage and of Bain. 137 



This sample contained in the imperial gallon, in grains — 



Xitric acid 4-78 



Ammonia 0'003 



" No. 1, B. — Poor clay tillage field. (Gratton on Xewland.) — Xo manin-e 

 last year ; wheat about 7 bushels per acre this year, being very ])00r naked 

 fallow, drained with 2 inch pipes 3 feet deep ; continually running for last 

 three weeks." 



This sample contained — 



Kitricacid 2-99 



Ammonia a tr 



'99 ) 



V in the imp. gall, 

 ace j "^ = 



" Xo. 2, A. — Shelving pasture on Xewland. (Clay.) — Xo manure ; not 

 watered ; drained last year with 2 inch pipes 3 feet deep, continually running 

 ever since." 



^^^^o^^d ^•e^Hgr^.i, the gall. 



Ammonia 0-012 ) ° =■ 



" Xo. 2, I?. — Clay water meadow. (Sprydon.) — "Well watered every day 

 Avith wash from a dwelling-house." 



Xitricacid 0-12 



Ammonia 0'012 



" Xo. 3, A. — Pasture sandy soil. (Mr. Joe Salters, Ham.)— Xo manure ; 

 drained with 3 inch pipe 4 feet deep last year ; water not stopped running." 



Xitricacid 0-485 per gall. 



Ammonia trace. 



Another sample from Mr. Acland (No. 5 A) contained TOT 

 grains of nitric acid in the gallon. Four samples of water from 

 Mr. Wren Hoskyns were analyzed for nitric acid — unfortunately 

 having been sent to the railway on a very wet day, the labels 

 were obliterated, and there were no means of distinguishing the 

 samples from each other. Tliese samples gave respectively ot 

 nitric acid in the gallon 4-()3, 4-40, I'lO, and 1-17 grains. The 

 following is Mr. Hoskyns' description of these saniples. 



Xo. 1. "The Twelve-Acres."— A strong soil on clay bottom, very flat. 

 Drained (3i feet deep) in IH'A. Ridges lowered after drainage. A two-yiars' 

 clover-ley broken up for wheat in Xovember last. 2 cwts. of guano and an 

 ecpial Indk of salt, to the acre, applied after the drill. It had been sheeped 

 all the summer, but not dunged troia the fold. 



Xo. 2. "The Croft." — A rather thin-soiled field of medium texture; drained 

 3 feet deep in 1845. Turnii^fallow after wheat ; liujed 15 qrs. to the acre 

 and dunged from the fold-yard. [Superphosphate drilled with the turnip-seed, 

 on the ridge. 



Xo. 3. "Lower Brick -Kiln Close." — A moderately stiff soil, furrow-drained 

 3 feet deep in 1844. A wheat-stubble autumn-ploughed for beans. The 

 wheat had been dressed with 2 cwt. of guano, half at sowing-time and half 

 top-ilresstd in spring. 



Xo. 4. " I'.laek l*it;ce." — A peaty soil on gravelly and sandy clay subsoil ; 

 ilraincd 30 inches deep in 1843. A clover-ley after wheat ; not manured. 



The drainage-water was taken from the four lields on the same day, the 

 21st of January last, after and during very rainy weather. 



