42 



ThcWcckly Florists' Review, 



Apeil, 27, 1911, 





W. van Kleef & Sons, Boskoop, Holland 



Wholesale Growers and Exporters of all kinds of Nursery Stock ^ - 



beg to announce that tlieir W. van KLEEF, JR., is again in America, calling on the trade. Before placing your import 

 orders elsewhere, please ask our prices— they will certainly interest you. Specialties: Japanese Maples, Azaleas, 

 Rhododendrons, Clematis, Roses, (Tonifers, Peonies, Shrubs, IToung Trees, etc., etc. Catalogue for the asking. 



ADDRESS ALL CORRESPONDENCE, UNTIL JUNE 1st, 



Care of Messrs. Maltus S Ware, 14 Stone Street, New York 



Mention The Review when you Tfrite. 



the summer and it is necessary to keep 

 a protocol over the whole undertaking, 

 in which not only every specimen of 

 the ancestors is described, but also the 

 descendants in all their individualities. 

 In the autumn the cabbage, roots, or 

 those other plants which are cultivated 

 for this purpose, are taken up and 

 placed in rows on the field and then 

 every number is described in the regis- 

 ter and character is given for the dif- 

 ferent qualities, for example: form, 

 greatness, top, root, firmness, color, 

 height, health, etc., etc., and at last 

 all the specimens of each number 

 are counted, gathered in heaps and 

 weighed, always each number sepa- 

 rately. 



"The different root sorts must still 

 bear a close examination in a special 

 laboratory in order to substantiate 

 which number is in possession of the 

 highest percentage of nutritive value. 

 This value is multiplied with the num- 

 ber's increase in bulk and the worth 

 of the roots is subsequently defined in 

 weight of dry matter per acre. As re- 

 gards the cabbage, the heads must be 

 divided by cutting to decide firmness 

 and color; in celeries the whiteness of 

 the flesh is of the greatest importance, 

 and in every sort there are a lot of 

 little things which must be counted, 

 and many good qualities which it is of 

 great consequence to unite in one 

 specimen. 



' ' When character is given in the 

 register for all the qualities, good and 

 bad, it is easy to come to the conclu- 

 sion which of the 1.50 families in every 



F. J. GROOTENDORST ft SONS 



BOSKOOP. HOLLAND 



^rL'^'de "' **' Ornamental Trees, Shrubs, Evergreens and Bulbs 



Specialties: Acer, Aesculus, Ampelopsis, Aristolochia, Azalea, Buxus, Clematis, 

 Dielytra, Funkia, Hydrangea, Kalmia, Magnolia, Paeonia, Phlox, Rhododendron, 

 Roses, Standard Roses, Conifers, Tulips, Hyacinths, Narcissus, Crocus, Palms, Bay 

 Trees. Catalogue on application to our MR. C. QROOTENDORST, care MESSRS. 

 P. C. KUYPER & CO., 10-12 Broadway, NEW YORK. 



Mention The Review when you write. 



VAN GRIEKEN S BULBSj well selected 



SSufrSS.^'^^^JSliS^&iJfSiaV"'"'' ™ VAN GRIEKEN, lisse, Holland 



Mention The Review when vou write 



respect is preferable to cultivate fur- 

 ther on. To avoid the risk that bad 

 qualities shall be hidden in the first 

 generation and first come forward in 

 the second generation, a single family 

 is not chosen at once for further cul- 

 tivation, but ten per cent of the num- 

 bers, or fifteen families, are taken. 

 The other 135 families are destroyed 

 and of the reserved fifteen the best 

 number is chosen the next year^ which, 

 with genealogical tables, bear the race 

 further on." 



CABBAGE COPENHAQEN MABKET. 



The Review has received the follow- 

 ing interesting letter from Hjalmar 

 Hartmann & Co., Copenhagen, Den- 

 mark: 



Stock Roots of Mangel Red Eckendorf Laid Out for Selection. 



FOR 



SEEDS 



of all kinds apply to 

 W. W. JOHNSON & SON, Ltd. 



BOSTON. XNOLAND 



Mention The Review when jou wnt*. 



ORCHIDS 



Largest Importers, Exporters, Orowers 

 and Uybridists in the world. 



SANDER, St. Albans, England 



aid 258 Broadway. Room 721, New York Qty 



Mention The Review when you write. 



DANISH SEEDS 



If you take Interest in Cabbage, Caallflower, 

 Carrot, Hangrel, Hwede and Tomlp, of selected 

 strains (state controlled), please apply to 



CHR. OLSEN, Odense, Denmark 



Wholeaaln Seed Grower (Established 1862). in order 

 to have your name placed on my maillDK list. 



' * As we have received requirement 

 from one of the leading seed houses in 

 the r. S. A., asking us if the nearly 

 early <ai)l)age. (Copenhagen Market, is 

 identical with another variety offered 

 as Early Danish Hummer Ball Head, we 

 beg you to publicate the following: 

 The new early cabbage, Cojtenhagen 

 Market, has not been grown for seeds 

 in Denmark before 1910, when we first 

 offered seeds thereof to the trade. This 

 nplendid cabbage has been grown from 

 imported seeds for the ('oi)eniiagen 

 market trade for a few years. In 1908 

 we had it in our triaf ground and 

 found it, in comparison with other 

 early cabbages, to be quite distinct 

 with regard to its earliness, heaviness. 



