354 



HORTICULTURE A7 THE WORLD'S FAIR. 



measures were adopted the whole patch would be doomed. 

 Too much work had already been expended on them to 

 let them go without an effort. So taking between us a 

 coal-scuttle filled with a mixture of unleached ashes and 

 bone superphosphate in equal parts, my man and I got 

 down on our knees and began operations. Taking a row- 

 each we removed the earth from around the stem of 

 every plant so as to expose as much of it as possible 

 without disturbing the roots. Then rubbing the thumb 

 and finger quickly up and down the stem, we made short 

 work with the maggots embedded therein. Next, the 

 stem and exposed roots were thickly dusted with the mix- 

 ture we carried. Last of all, the earth was replaced 

 around the plants with a quick movement of the hand. 

 After a little practice this could be done very rapidly, and 

 we went over the whole patch in a day. 



Many of the plants were too far gone to be saved, but 

 those not too badly honeycombed soon recovered. The 

 result was highly satisfactory. Freed from the incubus 

 •of the maggots and invigorated by the mixture applied, 

 the plants took a fresh start and were soon out of dan- 

 ger ; and the cabbages were finer and more solid than any 

 I had ever raised. To make this remedy effective it must 

 be applied when the first sign of the presence of the 

 grubs is noticed. A few days delay may ruin the crop. 

 ■ — Subscriber. 



effects of coal-tar on lettuce. 



Among the several varieties of lettuce grown in our 

 greenhouse last winter was a plat of the Grand Rapids 

 variety. All the lettuce-plants seemed healthy and to be 

 growing well, until one day I noticed that the Grand 



Rapids had a peculiar appearance. A few days later the 

 ends of the leaves were badly wilted. I called the atten- 

 tion of our botanist to the fact, and he made a careful 

 examination, but could find no signs of fungous disease. 

 No variety was affected except the Grand Rapids. 

 The leaves of this variety, where they had wilted, finally 

 dried up and broke in pieces ; the plants recovered and 

 began to grow again, but their growth had been so much 

 retarded that they did not amount to much. 



About a month later the same thing happened again 

 to our plants of Grand Rapids lettuce. Then I noticed 

 that the dying of the plants occurred about the time that 

 we put strips of tarred paper around under the greenhouse 

 benches to darken our mushroom-beds. I put about two 

 inches square of the paper with some Grand Rapids let- 

 tuce, under a bell-glass that held about one-half a cubic 

 foot of air. In a short time the lettuce under glass with 

 the paper wilted as it had done in the benches, and then 

 died. We had put nearly enough paper in the house to 

 give the same ratio to the atmosphere as was given under 

 the glass, but the ventilation probably saved the lettuce. 

 The Grand Rapids seems to be tenderer than other kinds 

 of lettuce. I placed several varieties under a glass case 

 with some tarred paper, and succeeded in killing every 

 plant of Grand Rapids without injuring the other sorts 

 in the least. The Grand Rapids lettuce also shows a 

 marked contrast with other lettuces in another respect. 

 With us it remains entirely free from mildew, when other 

 varieties are badly affected ; thus showing strength in 

 one direction and weakness in another. — E. C. Green, 

 Ohio Experiment Station. 



HORTICULTURE AT THE WORLD'S FAIR. 



NOTES ON THE WORK IN CHICAGO. 



HORTICULTURAL exhibits for the 

 World's Columbian Fair in 1893 will 

 be much better than they were for 

 the Fair of 1876. A foremost Euro- 

 pean authority remarked, while at- 

 tending this fair, that, had it not been 

 for the contributions of one leading 

 American nursery, the horticultural exhibit would have 

 been indeed discreditable to our nation. With Chiefs 

 Samuels and Thorpe to carry out the plans that have for 

 some time been maturing in active minds, there is every 

 promise for the greatest exhibition of horticultural objects 

 that the world has ever seen. Still, since the display 

 must primarily depend on the assistance of all engaged 

 in the trade of horticulture, it well tecjmes all thus 



engaged to exert their very best individual efiorts towards 

 the success of this department 



A feature of the World's Fair that will be sure to 

 attract great attention is the one-acre rose garden, a 

 ground plan of which is given on page 355. In the center 

 of the garden is to be a pagoda, reached by four main 

 walks. At the four places of entrance, marked A, the 

 walks will be spanned by arches of wire, covered with 

 climbing roses. The dotted lines, marked T, that define 

 the garden proper, will consist of wire trellises, which 

 will support climbing and wall roses. 



The "Wooded Island" in the Exposition grounds is 

 beginning to assume the character of a gigantic flower- 

 g irden. Already the floricultural department has re- 

 ceived 27,000 rose-bushes and other plants, several thou- 



