XXv1 REPORT—1904. 
Sus-Sucrionzor AGRICULTURE, 
Page 
Address by W. Somurvittn, M.A., D.Sc., D.dic., Chairman ..........+1eeeeeeees 784 
1, *The Organisation of Agricultural Research in America. By Professor — 
PACE YAU caries steccassbivasteelsssoudevsccleseesescseseseoss assy vshirars-naeeh nat eersmamaes 795 
2. The Improvement of Wheats and Mendel’s Laws. By R. H. Brrren, 
MPRA RS ae seeW dens stcceuans>toosesckscocsesacsoe0t sccm sera eess's ¥xsaime ii tapt iene 795 
3. Hybridisation of Cereals. By JoHn H. Witson, D.Sc. .....sseeceeeeeeeeee 796 
4, The Clover Mystery: A Probable Solution, By Roserr H. Evtiot...... 797 
FRIDAY, AUGUST 19. 
1, On the Problems of Ecology. By Professor A. G. Tanstny, M.A., 
WET espe Afel a tanecsungthougionsvex<os <cextads shan asanutenchsoee<sssadaiaaeat rie 797 
2. Botanical Survey of Britain. By W. G. Smira, B.Sc., Ph.D.............06 798 
3. *Observations on the Biology and Distribution of Woodland Plants. By 
ARGV PONY OOD IAT J2. 0 cle sgssvek coadsovecducteece cess WxaseiitueWesastvsu 00a 798 
4, Interglacial and Postglacial Beds of the Cross Fell District. By Franects 
PBI WISs IE MaSe) fasmeascaceotcuesetts sic spserveecoscesansssscleoce ses, a) ocny eae 798 
5. Plants of the Northern Temperate Zone in their Transition to the 
High Mountains of Tropical Africa. By Professor A. ENGLER............ 799 
6. Mechanical Advantage among Plant Organs. By J. Crarx, Ph.D., B.Se. 801 
7. *Exhibition of Pure Cultures of Alge. By Professor R. CHopat ......... 801 
8. “Exhibition of Micro-photographs of Freshwater Plankton. By Professor 
Reber UNE: 2 not gaye cos catia atcha; cannes sx sueswabecases>} -s¢néaaeeys Cie nalana 802 
9. *Exhibition of Kammatograph Photographs showing the Movements of 
father bey Mrs, SD. E1, SOGOU, <.ccoasstevssciduseases eas unsstnaczhevenaa ieee 802 
10. *On the Artificial Formation of a New Race. By Professor G. Kizss... 802 
11. The Present State of our Knowledge of the Cytology of the Cyano- 
piyces. By HAROLD WAGER, BLES, ~..5...cc0sccaccqaene redverssnaeereeninaa 802 
12, The Virgin-woods of Java. By Dr. J. P. LOTSY ...cccccccsessssssessereeseees 803 
“ Sus-SEcrion oF AGRICULTURE. 
1, Analysis of the Soil by means of the Plant. By A. D. Hatt, M.A....... 804 
2. The Probable Error of Agricultural Field Experiments. By A. D. 
BTS ks | MY Aso see ane saer vances dana scuccicstichavtnt cesrasarecsveroo regan ana 804 
3. The Determination of the Availability of Insoluble Phosphate in Manures. 
By T. S. Dymonn, F.I.C., and GrorGn CLARKE, A.L.C. ......cceesesereee oe 805 
4. The Influence of Sulphates as Manure upon the Yield and Feeding-value 
of Crops. By T. 8. Dymonp, F.1.0., F. Huenzs, and ©, Jure ..........5 807 
5, The Improvement of Poor Clay Soils by White Clover and other 
Leguminose. By Professor T. H. MIDDLETON, M.A. .....csceceeescceeeeeees 808 
6. A New Method of Forming Nitrites and Nitrates. By EpwAarp Joun 
Russet, D.Sc., and NoRMAN SMITH, M.Sc. ........ccssesssescssccccccccceeeene 809 
7, The Chemical Composition of Different Varieties of Mangels. By. T. B. 
aon eM. and I, A. ‘Burry, BTC)! ../i.ssscsiaecestes thee oa ueuicave 810 
8. Variation in the Chemical Composition of Mangels. By T. B. Woon, 
eens. As Benny, FLO, | 5 0,0che1c0sescoiviesWtKecavdeseugeh eaeeead 811 
