Excess of a 
PLAT. harvested. | Peraere. | Viel Oh 
unmanured. ~~ 
Pounds. Pounds. Pounds. 
Dl ny PMS Be SRE SU 948 ‘ 960." ').'6 Seen 
Oo) TA URE SA ac tts a 825.5 16510%)\, 40 eee 
RR etenic tn ete ws Geateon hie Wibca nee’, Mat Rieke 1460 29200 6380 
21. CUE ETO DER ORI Ae Se et a 1206 BEV 2051) teed Beye 
RAR aN elc sa colian chk isl viet eleven ss aaule nusenelts 1210 24200 ede eee 
Re een oie al Wy ce level coon ate taue alate elie 1452 29200 | - 6220 
IR na nei ee PR 1166 93390 
Peay OY otwcsick gece aa ae ars wi hy 1368 27360 4540 
Tote aN Aa aR A i I 1258 25160 _ 2340 
0 CTS EE ey beep nagn 1072 91440.) a 
OS IE SI AS Oe See A RTCA 1450 29000 6180 | 
1 NGG AE ARATE NM Kea nL SHO 1420 28400 5580 
ee ee ae | 896 | 17920 | Pra 
Fae wataliaits\ya! lwivi| s/he ole) wivaiinila’ ieiveliwlim) elishimiletielte: tev oath yi) c Mead cea rel) Vina Py Ut) Vueraernd eee UPN Nice 
1136 | 22720 
REPORT ON LYSIMETERS FOR 1889. 
The drainage from the three old lysimeters was running so even 
in composition that the chemist has made no examination of the 
water from them the past season. The chief interest centering in 
this work for this year is the initial behavior of the new lysime- 
ters which have been fitted with apparatus for the determination 
of the evaporation as well as drainage from the lysimeter. Hence 
this report is made simply to give the record of what has been 
done to those of our constituency who are interested in this line 
of investigation. This new feature in lysimetry seems to be 
justly regarded as an important step in advance in gaining an 
insight into the physical forces which are at work in the soil. 
The old form of lysimeters can not be depended upon to show 
any phenomena in common with the surrounding soil. This 
becomes evident when one considers that because the lysimeter 
soil is cut off from the subsoil during a period of drouth it 
becomes excessively dry and then when rain enough to saturate 
has fallen there is only the depth of the lysimeter to be filled, 
but it may hold far more than an equal depth of like soil which has 
been all along drawing on the water table in the subsoil for water. 
This dessication invites a wider range of temperature, freer expos- 
ure to air and probably other potent causes of change to which the | 
natural soilis not subject. In this new feature we have a method of 
supplying water at the bottom of a column of soil and to observe 
