COLLABORATORS 



BuTZ, Prof. Geo. C, Horticulturist, Pa. Exp. 

 Sta., State College, Pa. {Carnation. Penn- 

 sylvania.) 



*Cameron, Robert, Gardener, Botanic Garden of 

 Harvard Univ., Cambridge, Mass. {Various 

 arlides and much help on rare plants. Alpinia, 

 Campanula, Echinocactus, Nemophila, Primula, 

 Ramonda, Urceolina, etc. ) 



*Canning, Edward J., Gardener, Smith College, 

 Botanic Gardens, Northampton, Mass. {Many 

 articles and much help on rare and difficult 

 plants. Antliurimn. Echinocactus. Epiphyllum. 

 Gloxinia. Peat. Puya. Soil. Stocks. Stove 

 Plants. Vines. Zingiber. ) 



*Card, Prof. Fred W., Horticulturist, E. I. Exp. 

 Sta. Kingston, E. I. {Nebraska. Botany and 

 culture of bush-fruits, as Amelanchier, Bcrheris, 

 Blackberry, Buffalo Berry, Currant, Loganberry , 

 Raspberry, Ribes. ) 

 Clinkaberry, Henry T., Gardener, Trenton, N. 

 J. {Certain orchids, as Lmlia.) 



*Clinton, L. a., Asst. Agriculturist, Coi-nell Exp. 

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



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

 merly Horticulturist Utah Exp. Sta.), Newark, 

 Del. {Utah.) 

 CoATES, Leonard, Fruit-grower, Napa, Calif. 



{Olive. Orange. Has helped on other fruits.) 

 Cockerell, T. D. a., Entomologist, East Las 



Vegas, N. M. (iVew Mexico.) 

 Collins, John S., Fruit-grower, Moorestown, 

 N.J. {Pear.) 



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

 of Pa., Philadelphia, Pa. {Xym2>ha'a. Victoria.) 

 Cook, O. F., Botanist in 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, 

 and tropical plants.) 



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

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

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

 W. Va. {Storage. West Virginia.) 



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

 of "Garden and Forest," Ithaca, N. Y. {Va- 

 riotis native plants. Stiles.) 

 Coulter, John M., Professor and Head of the 

 D6pt. of Botany, Univ. of Chicago, fChicago, 

 111. {Echinocactus.) 



*Cowell, Prof. John P., Dir. Buffalo Botanic Gar- 

 den, West Seneca, N. Y. {Odontoglossum . 

 Phormium. Rhus. Robinia. Sambucus. Sym- 

 phoricarpos. Tilia. ) 



*CowEN, J. H., formerly Assistant in Horticulture, 

 Colo. Exp. Sta., died 1900. {Certain Colorado 

 plants, as Lepachys, Leucocrinum. Verbena, i 

 See personal note under "Verbena." 



*Craig, John, Prof, of Extension Teaching in Ag- 

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

 Gooseberry. Kale. Kohlrabi. Pomology. Quince. 

 Rape. Spraying. Tliinning Fruit.) 



Craig, Egbert, 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- 

 rado.) 

 *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. 

 {Sweet Pea. Helped on Pea.) 



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

 heaths and hard-wooded plants. Flushing, N. 

 Y. {Epacris. Leptospertnum. Pimelca. Has 

 read proof of many articles on hard-tvooded 

 jdants.) 

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

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

 lacecE, e. g., Clematis, Nigella, P(E0nia, Ranun- 

 culus. Help on West Virginia. ) 

 *Davy, J. BuRTT, Asst. Botanist, Univ. of Calif. 

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

 California, various Myrtacece, and many important 

 subtropical subjects, as Acacia, CalUstemon, Eu- 

 genia, Eucalyptus, Maytenus, Pittosj)orum, Psid- 

 ium, Romneya, Schinus, Sollya, Streptosolen, 

 Trislania, TJmbeXlula'''ia. Washingtonia, Wind- 

 breaks, and others.) 

 *Dawson, Jackson, Gardener, Arnold Arboretum, 

 Jamaica Plain, Mass. {Rose. ) 



Dean, James, Florist, Bay Eidge, N. Y. [Nephrol- 

 epis. ) 



Deane, Walter, Botanist, Cambridge, Mass. 

 {Herbarium. Has read many proofs and helped 

 on various botanical problems. ) 



Dewey, Lyster H., OfBce of Botanical Investiga- 

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

 {Mentha- Phytolacca.) 



DoRNER, Fred, Carnation specialist, Lafayette, 

 Ind. {Carnation.) 

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

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

 {Violet.) 



Douglas, Thos. H., of E. Douglas' Sons, nursery- 

 men and specialists in conifers, Waukegan, 111. 

 {Larix. Picca. Pscudotsuga.) 



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

 ton, Park, O. {Picea.) 



