COLLABORATORS 



BUTZ, Prof. Gbii. C, Horticultui'ist, Pa. Exp. 

 Sta., State College, Pa. { C<(n,(ilioii. I'viii,- 

 sijleania.) 

 *Camekon, Egbert, Gardener, Botanic Garden ot 

 Harvard Univ., Cambridge, Mass. (rarioiix 

 itrlirlcs anil )iiiiiii help on rurc iihnils. Alj'iiihi, 

 Ciiinjinnula, Frliinnraflii.-i, Xvumiihihi , rriiiiiild, 

 HiUiiiinilit, Uirnilhiii, etc. ] 

 *C.vxxiNG, Edwakp J., Gardener, Smith College, 

 Botanic Gardens, Nortliampton, Mass. (,)/.(»// 

 iirtirles mill niiirli liilp on run' (mil iHJJiciill 

 liliinls. Anlhiiniim. Ediinonirliis. EiiijihijUiuii . 

 (llnxinia. Prill. Piiija. Soil. Stocks. Store 

 Pliintx. Viiirx. Zinijilier.) 

 *Carii, Prof. Fi;ei> V,\, Hortieiiltnrist, E. I. Exp. 

 Sta. Kingston, E. I. {Nrhm.il-ii . Bntiuiij anil 

 ciilliii-e ofhiish-fniils, OS Anirliiiiehirr, Brilieris, 

 KInrliternj, Hiijfiilo Bcrrij, Currant, Loganherry, 

 Rasiihernj, Itit.es. ) 



Cr.iXKABEKRY, Henrv T., Gardener, Trenton, N. 



J. ( Certain meliiils, as Lift in. ) 

 "Clinton, L. A., Asst. Agriculturist, Cornell Exp. 



Sta., Ithaca, N. Y. (Soij Bean. Spiirrij.) 

 *Cl(ise, C. p.. Horticulturist, Del. Exp. Sta. (for- 

 merly Horticulturist Utah Exp. Sta. ), Newark, 

 Del. (riali.) 



Co.\TEs, Leonard, Fruit-grower, Napa, Calif. 

 (Ulice. Orani/e. Has lielpeil oti other fruits.) 



CocKERELL, T. D. A., Entomologist, East Las 

 Vegas, N. M. [Neip Me.rico.) 



CnrriNR, John S., Fruit-grower, Jloorestown, 



X. J. (Pear. ) 

 ■■■CuNARD, Henry S., Senior Fellow in Botany, Univ. 

 of Pa., Philadelphia, Pa. (Xymphaa. Vietoria. ) 



CiioK, O. F., Botanist in charge of investigations 

 in Tropical Agriculture, Div. ot Botany, U. S. 

 Dept. Agrie., Washington, D. C. (Coffee. Pn- 

 riliinn. Help on Porlo Pieo, Seehiiiin, Zingiber, 

 anfl trojiieal jitants. ) 

 *CoRBETT, Prof- L. C^, Horticulturist, Bureau of 

 Plant Industry, U. S. Dept. Agric, formerly 

 Horticulturist, W. Va. Exp. Sta., Morgantown, 

 W. Va. (Storage. IFest Virginta.) 

 *CouLSTON, Mrs. M. B., Formerly assistant editor 

 of "Garden and Forest," Ithaca, N. Y. (T'a- 

 riOHS vatire plants. Stiles.) 



Coulter, John M., Professor and Head of the 

 Dept. of Botany, Univ. of Chicago,'' Chicago, 

 HI. iJiJehinoeaetlls.) 

 *('owEEL, Prof. John F., Dir. Buffalo Botanic Gar- 

 den, West Seneca, N, Y. (Oilnnloglossiini . 

 Phnrniiiiin . Jllms. PnlPniia. Sainhneiis. Sijiii- 

 pliiineiirpos. Titia . ) 

 *Cii\VEX, J. II., foiauerly Assist.'int in Horticulture. 

 Colo. Ex|.. SI a., died li)no. (Crrliiin Culnrailn 

 plants, as J^epaelnjs, Leiieoeriinnn . Vcrtienn.] 

 See personal note under '' \"erl.ena." 



•■Craio, John, Prof, of Extension Teaching in x\g- 



ric, Ceriiell Univ., Ithaca, X. Y. (Canada. 



Giioseherrij. Kale. Kohlrahi. Ponintogip Quince. 



Rape. Spraying. Thinning Fruit.) 



Craig, Egbert, Florist, Philadelphia, Pa. (Arau- 



caria. Ardisia. Codiceuin.) 

 Craig, W. X\, Gardener, North Easton, Mass. 



(Muslirooni.) 

 Crandall, Prof. C. S., Div. of Forestry, U. S. 

 Dept. Agric, Washington, D. C. (Colo- 

 railo.) 



*Cropp, Carl, Seedsman, Vaughan's Seed Store, 

 Chicago, 111. (Stock.';.) 

 CuLBEP.TSoN, H., El Ca.-jon Packing Company, El 



Ca.jon, Calif. (Peach.) 

 CusiiJiAN, E. H., Gladiolus siiecialist, Syivania, 

 Ohio, (atailiolus.) 



*Darlinoton, E. D., Superintendent of Trials, 

 Fordhook Experimental Farm, Doylestown, Pa. 

 (Stcect Pea. Pteljied on. Pea.) 

 Darlington, H. D. , Wholesale florist, specialist in 

 heaths and hard-wooded plants, Flusiiing, X. 

 Y. (Ei)iii'ris. Leptosperniiun. Piinelea. Has 

 read proof of many articles on liaril-iroinleil 

 plants ) 



*Davis, K. C, Horticulturist, W. Va. Exp. Sta., 

 Morgantown, W. Va. (All genera in Eannnen- 

 lacew, e. </., Clematis, Nigella, Pa-onia, Panim- 

 culus. Help on West Virginia.) 



"'■'Davy, J. Burtt, Asst. Botanist, Univ. of Calif. 

 Exp. Sta., Berkeley, Calif. (Trees and Vines of 

 California, various Myrtaecw, and manyimporlanl 

 suitropieal siihjeets, as Acacia, Callistemon, Eu- 

 genia, Eiieiilyi>tus, Maytcnus, PiUosporum, Psid- 

 ium, Romneya, Schinus, Sollya, Strepiosolen, 

 Tri.stania, JJmiellularia, Washinglonia, Wind- 

 lireaks, and others.) 



*Dawson, J.agkson, Gardener, Arnold Arboretum, 

 Jamaica Plain, Mass. (Ruse. ) 

 Dean, James, Florist, Bay Eidge, N. Y'. (yephrol- 



epis. ) 

 Deane, Walter, Botanist, Cambridge, Mass. 

 (Herhariuni. Has read initny jii-oofs and helped 

 on rarions hotanieal problems. ) 

 Dewey, Lyster H., Office of Botanical Investiga- 

 tions, U. S. Dept. Agric, Washington, D. C. 

 ( ^fen Ilia I'hylnlacca . ) 

 DORNER, Fred, Carnation specialist, Lafayette, 

 lud. (Carnation .) 



*Dorsett, P. II., Associate Physiologist and Pathol- 

 ogist, U. S. Dept. Agric, Washington, D. C. 



( Vinlft ) 



Diu/GLAs. Tilos. li.. of Iv. Douglas' Sons, nursei'V- 

 men and specialists in conifers, W.aukegau, 111. 

 (Lari.r. J'ieea. Pseudotsnga .) 



Drew, E. P., Manager Eoidiv Eiver Nursery, Clif- 

 ton. Park, I), il'ieea.) 



