th teh “—5 Sb TEN mistecnatenty a is a rors rise PEE: #2 REARS TER ? be => =e 7sis feieteis ; ’ ’ é eee tes Saha) eee 85 Pee « a elel et oe Saree to reel ake: ete tee Le oe AK Rings ee es ) FAAS = i Ae MgC Es AN at JOURNAL OF THE 20YAL HORTICULTURAL SOCIETY | | ROYAL CHARTERS ESTABLISHED A.D. 1809, 1860, 1899 A.D. 1804 | EDITED BY Par CHITTENDEN, —.1.58. WO se ZOCK MLL E: IQI2—13 The whole of the Contents of this Volume are Copyright. For permission to reproduce any of the Articles application should be made to the Council of the Society, in whom the Copyright vests. LONDON Printed for the Royal ‘horticultural Society BY SPOTTISWOODE & CO. LTD., NEW-STREET SQUARE, E.C. Part I. published July 15, 1912. Part II. published November 8, 1912. Part III. published April 1, 19138. SONTENTS OF VOL. XXXVIII. pee ea eae PAGE Pruant Lire 1n A Tropican Isuanp. By Sir Everard im Thurn, K.C.M.G.,C.B. 1 New Sweet Peas. By ‘W. Cuthbertson, J.P., F.R.H.S. ........ccccsccecescsessoverecees 10 THe StTiMvuLATION oF PLANT GrowrTH. By Professor H. EK. Armstrong, F.R.S. ... 17 acre eee EIEM Ey Mayne Ve MEE sco ccncioseclcnterscucccsacsienedecadacscessirlersecedredesesweness 22 Darwin AS Econoaist. By Rev. Professor G. Henslow, M.A., V.M.H............. .. 27 HEREDITARY CHARACTERS IN THE Potato. By Dr. Redcliffe Salaman ............... 34 CONTRIBUTIONS FROM THE WISLEY LABORATORY : Nevle——_ brush In’ Porato., By A. S. Horne, B.Sc., F-G.S. 2. ccc. .cccessessnssseses 40 METEOROLOGICAL OBSERVATIONS AT WisLEY. By R. H. Curtis, F.R.Met.Soc. ...... 51 Errects or SumMER oF 1911 on Fiowerine or Syrups. By W. L. Fox, F.R.H.S. 65 An Anatysis oF THE Pra Triats at Wistry. By F. R. Durham, A.M.Inst.C.E., Hama ile S MME Er eC Urine aiccach oman oenicceisaciincieio ses Gacairinme Semin neice close iiemmeckieeeecseces 67 EmeEHASTRUM Horera. By A. Worsley, F-R-H.S. 0. cc. cvccccescecsesesnceccosnsereseos 73 EE HEC UMTIVATION-. Dy Eo bl. Seed, FOR EES. “cvscssecsscaccsecsestscsstccecdccssecsens 76 MELONI NIE N ORTON HS ies wrescars ern cicreinisivisiaieviaivieleisie sic s cle sroicte via cecision cwsina de wi.g cele vevcvs obs cacenegse we 78 eve APLC I ERGWY Slat ae et Te sista vicloimsisiose 6/e/n/iaiso sib sie vjloisisioss'e nis sieid/asaglbiois sieie set wiscels vies egtie eas 80, 288, 582 REvoRTS OF EXAMINATIONS : HANES MMLLPRGAUNTOTENTACTORO Nis terctersstelsicteimicleisietsicie ainicinielsie’s si aelewiioas sieiwlenvaieineicle's she ecye wae osilesin es ge srcacs cod. Oho) CG eANGL UR ANIA ES PXCAUNGD NASIR ONCE ater Siecle cisioteierc ciate ceiaisivieletoin sie e/eisicislere cielore cleieciciels wie vase cierelecceces ce 313 PACED ae pNOANUENUAUTT ONat seein eiaraicin'e ¢ sroeasiememiscn calsas ceelsis cialsns se dee vee oee sedsioe snceceesecs 321 ING@RNSENNDPABS DRAGER: es cccciraceniccicsive ces pesecccctcsonec cece uecsectoverccerseseeees’ 98, 347, 623 TENDER PuaNnts FOR A WARM CorneR. By R. I. Lynch, V.M.H. ..................... 189 DroucHt AND GARDENING. By Professor I. Bayley Balfour, F.R.S., V.M.H. ...... 206 Tue Rev. Proressor J.S. Henstow as Econocist. By Rev. Professor G. Henslow, VIO NVA PV eli esmetectereta- cere cic oe einsiacioele clessticeicis slicicide.d casieeosaceinescvissbieseseseseesenes ace ced 220 THe WistEy Rock aNnD WATER GARDEN. By J. R. Pulham, F.R.H.S................ 225 THE Fuowers or AppLesS aS AN Aip 1N IpEeNTIFIcCATION. By E. A. Bunyard, PEP MELe MMR rae esciereOci cetsiaairiocteu'ssuitls seve: datecolisisiemiols ves eGiscsle ntevacWaeleesieed sasdaniaatis sens 234 THE POLLINATION AND Share oF Fruit Buosso 8 By C. H. Hooper, M.R.A.C. 238 IRRESENT-DAY WATER Linims. By J. Hudson, V.M.H. .......ccceccerscosccossscccsececses 249 Tue APHIDES ATTACKING Peas. By Professor V. Theobald, M.A..........ccccesces 256 SEM MMGAVENDER: «by Miss He ©: Philbrick:. .......0.s:casecterneterceccsccseseniecessers 258 DMMP HUNT MS WAT VW ISLEY, LOLQ sc cccevecceccs:csicst vic aces ccsiweecdspeceseccevecsue ABTS aOaRCHaer 262 SN eH E OVA STV CLOMID cutee and Moa e cae ‘ueaes ceceescssesient eeceocesess ec eeseceae sarge 271 WTO IEUNE JNO AY TST DGS LIAS Es nr res i en ee ce a oR enes ra a E 275 ENToMOLOGICAL CONGRESS AT OxFoRD, OID eet eh Scent net wuip ie men iN au in esas 345 PIRSHUD EE CONMERUNCE 55sec aeiecastecllde cease sucess stccisieatsioctensesess ere Sri Gals io cats toate afoties 401 PropieMs oF Propagation. By Professor I. Bayley Balfour, F.R.S. ............... 447 Town Smoke anp Puant GrowtH. By Dr. C. Crowther, M.A. .........cscceccscensees 461 Dovuste Fiowers. By Miss E. R. Saunders, F.L.S........ ae siorinte iclensele ects icalersacielessie'i 469 An EneuisH Frouit-Farm 1n THE Maxine. By H. Hooper, F.R.H.S. ............46. 483 Qn ScentED PELARGONIUMS. By Miss Troyte-Bullock, F.R.H.S. ............sceeeeee 497 THE VEGETATION OF THE IsLAND oF St. LEGER 1n Lago Maceiorr. By Madame HN ZMKOSO Cs Sts MCC seceneinnstncse sas svvcssnsc nes uedacccs wevioncwhctaescceesesenasesecnstesiens 503 Ture Senses oF Puants. By Rev. Professor G. Henslow, M.A., V.M.H. ............ 515 Some ExpeRIMENTS witH Contact InsecticipEs. By J. C. Johnson, M.A., M.Sc. 521 On THE NoMENCLATURE OF THE ORGANISM CAUSING ‘“ Corky ”’ on “ PowDERY-SCAB ”’ IN THE Potato TupEeR. By G. H. Pethybridge, Ph.D., B.Sc., F.R.H.S. ...... 524 BicEneric Hyprips, Cooprrta x ZEPHYRANTHES. By S. P. Lancaster, F.R.H.S. 531 7 1V CONTENTS PAGE Tue WEATHER OF 1911-12. By R. H. Curtis, Hon. F.R.H.S. .........ccc.cececeeeuee 533 Tue Sprincs anD SuMMERS OF 1911 anp 1912. By T. H. Dipnall, F.R.HL.S....... 536 THE Cooxtne or Roots anp Tusers. By C. Herman Senn, G.C.A............065 «se 540 REPORT OF CHEMIST FOR 1912. By Dr. J. A. Voelcker, M.A................ Rants eaenee 545 BEDDING PELARGONIUMS sav “WISLEY, 1912) 5... 5S22e..n0sccaentica con teececeemeeeeenaetsareene 549 MISCELLANEOUS FLOWERING PLANTS AT ee OUD ac cnees Sela eieaUeailaat aie alaees eee OOD MELONS “AT OW ISIR Yao) OID ie caus coe ce te acta ua beter aes Sats ciciga seers ee ee eo cea 561 POTATOS “AT WISTHY! 21 OUD rae ia svc ueee atica tain ee eee been o Skee Coan ROE SCE ERE CEE Se ee oe 565 VEGETABLE -MARROWS “AT “WisuEY, 1912) 2.5 cocsscencccsecws cemactenectocneceaemmeenereestenenor 972 MISCELLANEOUS VEGETABLES AT WISLEY, 1912 ..........ccsecevcccccscccscescccaccsscseccas o75 APPLIANCES TRIED AT WISLEY, 1912.............ccccceees sila Glasging oth sl Eales RAO acne EES 582 ADDITIONS TO LIBRARY, 1912 .........cesccccscseveeeens (ae eels coir esse else tet saeeeee iets serra eset 599 Donors oF PuaANts, ETC. 1912 .......... Sa useRloais see eosin Ge dais naid o SG dene es aa nee eee as 617 Wisnry. ScHoOL( OF (HORTICULTURE: sx soceccisscccs cor cecscaccaces jc timate ene neteerR aeaeen 684 EXTRACTS FROM THE PROCEEDINGS OF THE SOCIETY: GENERAL MEETINGS ........00. SRE CeO ARNO NG RENG Neleiersoaiets si aiesciatdica waqstorsaimereneinerss i, XCV, CXCVIil REPORT OF. COUNCIL AND BALANCE SHEET ...0:..ccsccencesceercevescessese+nacosseneeaes 1V SHow oF PorRcED BULBSicccic;sccsacescsctsenecsceus Saipenoneee saan CORTE MME eS cave ene muane xviii SHow OF DAFFODILS......+..006 sa Gotauin picnic eu ale aiciotan eran ebee Laecueseekatees ete a swe gee naan XXili BAanQguET To ForREIGN HORTICULTURISTS ....... RR Ra AAS ar ania si cuisew cairn xevi HOLLAND PARK: SHOW, sac ouscsens wees Or, oes once eee