COLLABORATOKS 



Bi-TZ, Prof. Geo. C, Horticultmist, I'm. Exp. 

 Sta., State College, Pa. (Canmliwi. /'<•»»- 

 syhmnia . ) 



*Camf,ron, Egbert, Gardener, Botanic Garden of 

 Harvard Univ., Cambridge, Mass. ( Various 

 articles and much help on rare plants. Alpinia, 

 Campanula, Ecliinocactus, Xcmophila, Primula, 

 Ramnnda, Urceolina, etc. ) 



*C.\NNiNG, Edward J., Gardener, Smith College, 

 Botanic Gardens, Nortbarapton, Mass. (ilany 

 articles and much help on rare and difficult 

 plants. Anthiirium. Ecliinocactus. Epiphyllum. 

 Gloxinia. Peat. Puya. Soil. Stocks. Stove 

 Plants. Vines. Zingiher.) 



*C.\RD, Prof. Fred W., Horticulturist, R. 1. Exp. 

 Sta. Kin^'ston, R. I. {Nebraska. Botany and 

 riiliuii- III' hush -fruits, as Amelanchier, Jicrberis, 

 I'.lm-I.l', mi, r.iiihitlo Berry, Currant, Loganberry , 

 i:as,.hnn,, ll,hcs.) 

 Clinkabkkry, Henry T., Gardener, Trenton, N. 

 J. (Certain orchids, as Lwlia.) 



*Clinton, L. a., Asst. Agriculturist, Cornell Exp. 

 Sta., Ithaca, N. Y. {Soy Bean. Spurry.) 



*Closk, C. P., Horticulturist, Del. Exp. Sta. (for- 

 merly Horticulturist Utah Exp. Sta.), Newark, 

 Del. {Utah.) 

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



(Olive. Ora7igc. Has helped on oilier fruits.) 

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



Vegas, N. M. (Neio Mexico.) 

 Coi.i.rNS, JonN S., Fruit-grower, Moorestown, 

 N.J. (Pear.) 



*CoNARD, Henry S., Senior Fellow in Botany, Univ. 

 of Pa., Philadelphia, Pa. (Nymphwa. Victoria.) 

 Cook, O. F., Botanist iu charge of investigations 

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

 Dept. Agric, Washington, D. C. (Coffee. Pa- 

 ritium. Help on Porto Rico, Sechium, Zingiber, 

 atid tropical plants.) 



*C0RBETT, Prof. L. C, Horticulturist, Bureau of 

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

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

 W. Va. (Steerage. West Virginia.) 



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

 of "Garden and Forest," Ithaca, N. V. (Va- 

 rious native plants. Stiles.) 

 Coulter, John M., Professor and Head of the 

 Dept. of Botany, Univ. of Chicago, "Chicago, 

 111. (Ecliinocactus.) 



*CowELL, Prof. John F., Dir. Buffalo Botanic Gar- 

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

 Phormium. Rhus. Rohinin. Samhiicus. Sym- 

 plioricarpos. Tilia.) 



*CoWEN, J. H., formerly Assistant in Ilortioulture. 

 Colo. Exp. Sta., died 1900. (Ccrttiin VaUmiiln 

 plants, as Lepacliys, Leucocrinum. Verbena.) 

 See personal note under "Verbena." 



*Cbai(;, John, Prof, of Extension Teaching in Ag- 

 ric, Cornell Univ., Ithaca, N. Y. (Canada, 

 (iooseberry. Kale. Kohlrabi. Pomology. Quince. 

 Rape. Sjiraying. Thinning Fruit.) 



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

 caria. Ardisia. Codiceum.) 



Craig, W. N., Gardener, North Easton, .Mass. 

 (Mushroom .) 



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

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

 rudo.) 

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

 Chicago, 111. (Stocks.) 



CuLBERTSON, H., El Cajon Packing Company, El 

 Cajon, Calif. (Peach.) 



CuSHMAN, E. H., Gladiolus specialist, Sylvania, 

 Ohio. (Gladiolus.) 

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

 Fordhook Experimental Farm, Doylestown, Pa. 

 (fiivcct Pea. Helped on Pea.) 



Daki.i.n-gtos, H. D., Wholesale florist, specialist in 

 heaths and hard-wooded plants. Flushing, N. 

 Y. (Epacris. Leplospermuin. Pimelca. Has- 

 read priiiif iif many articles on liiiril-iroiiihd 

 plants ) 

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

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

 lacem, e. g., Clematis, Nigella, Pwonia, Ranun- 

 culus. Help on West Virginia.) 

 *Davv, J. Burtt, Asst, Botanist, Univ. of Calif. 

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

 Cdlifiiniiti. i-di-niiis Miirliiciir, and many important 

 .<!ublrnp,r,il siihj,.-!-^, „s -Ir.ir,,,, CalUstemon, Eu- 

 gciiiti, I'liniliijiliix, Miiytiiiiis, Piltosporum, Psid- 

 iuni, Itomniya, Scliinus, Sollya, Streplosolen , 

 Tristanii, Vmhellularia, Washingtonia, Wind- 

 breaks, and others.) 

 *Dawson, Jackson, Gardener, Arnold Arboretum, 

 Jamaica Plain, Mass. (Rose. ) 



Dean, James, Florist, Bay Ridge, N. Y. (Xepbrol- 

 epis.) 



Dean'k, Walter, Botanist, Cambridge, Mass. 

 (Ilrrliarium. Has read many proofs and helped 

 on carious botanical problems. ) 



Dewey, Ly-ster H., Office of Botanical Investiga- 

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

 (Mentha. Phytolacca.) 



DoKNER, Fred, Carnation specialist, Lafayette, 

 Ind. (Carnation.) 

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

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

 ( Violet ) 



Doicii.AS, Thos. H., of R. Douglas' Sons, nursery- 

 men and specialists in conifers, Waukegan, HI. 

 [l.iirix. Picea. Pseiidotsuga.) 



DUKW, E. P., .Manager Rocky River Nursery, Clif- 

 ton. Park, O. (/■»•«(.) 



