XVI 11 



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 

 articles 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. Anthurium. Echinocactus. EpiphyUion. 

 Gloxinia. Peat. Puya. Soil. Stocks. Stove 

 Plants. Vines. Zingiber.) 



*CARD, Prof. FRED W., Horticulturist, R. I. Exp. 

 Sta. Kingston, R. I. (Nebraska. Botany and 

 culture of bush -fruits, as Amelanchier, Berberis, 

 Blackberry, Buffalo Berry, Currant, Loganberry, 

 Raspberry, Bibes.) 



CLINKABERRY, HENRY T., Gardener, Trenton, N. 

 J. (Certain orchids, as Lalia.) 



*CLINTON, L. A., Asst. Agriculturist, Cornell Exp. 

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



*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. (Neio Mexico.) - 

 COLLINS, JOHN S., Fruit-grower, Moorestown, 

 N. J. (Pear.) 



*CONARD, HENRY S. , Senior Fellow in Botany, Univ. 

 of Pa., Philadelphia, Pa. (Nymplma. 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- 

 rious native plants. Stiles.) 



COULTER, JOHN M., Professor and Head of the 

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

 111. (Echinocactus.) 



*COWELL, Prof. JOHN F., 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.) 

 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. TJiinning Fruit.} 

 CRAIO, 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- 

 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. Leptospermum. Pimelea. Has 

 read proof of many articles on hard-wooded 

 ^plants ) 



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

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

 lacece, e. g., Clematis, Nigella, Pceonia, 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, Callistemon, Eu- 

 genia, Eucalyptus, Maytenus, Pittosporum, Psid- 

 ium, Romneya, Schinus, Sollya, Streptosolen, 

 Tristcni i, Umbellularia. Washingtonia, Wind- 

 breaks, and others.) 

 *DAWSON, JACKSON, Gardener, Arnold Arboretum, 



Jamaica Plain, Mass. (Rose.) 

 DEAN, JAMES, Florist, Bay Ridge, N. Y. (Nephrol- 



epis. ) 



DEANE, WALTER, Botanist, Cambridge, Mass. 

 (Herbarium. Has read many proofs and helped 

 on various botanical problems. ) 

 DEWEY, LYSTER H., Office of Botanical Investiga- 

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

 (Mentha Pliytolacca.) 

 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 R. Douglas' Sons, nursery- 

 men and specialists in conifers, Waukegan, 111. 

 ( Larix. Picea . Pseudotsuga . ) 

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

 ton, Park, O. (Picea.) 



