THE NATIONAL NURSERYMAN. 
275 
WHEN PURCHASING STOCK. 
The Franklin Davis Nursery Co., of Baltimore, say : “There 
are three considerations that claim the attention of purchasers 
of nursery stock : First, it is of the greatest importance to 
procure a fine article, true to name. Secondly, it is of vital 
importance to secure good, healthy stock, for without a healthy 
plant to begin with, we have but a poor chance of success ; 
one healthy stock is worth a dozen sickly ones. Thirdly, suc¬ 
cess often depends on careful packing ; without it thousands 
of dollars’ worth of trees are annually lost.” 
FOR THOROUGH FUMIGYTION. 
E. Dwight Sanderson, of the Delaware Experiment Station, 
calls attention in the Rural New Yorker to some results in the 
matter of fumigating nursery stock. “ Until recently,” he says, 
“almost all fumigation houses have been built with solid floors, 
and the gas generated from a vessel placed in the center of the 
room. Where the house is so constructed that a load of trees 
can be brought in and left on the wagon, a vessel can be readily 
placed under it in the center of the room, but where the trees 
are unloaded and packed in the room, it is inconvenient to 
leave a place in the center for the generator, and, as a matter 
of fact, I suspect—basing my suspicions upon observation and 
information from nurserymen—that but few of them do so, 
but merely leave a space near one corner near the door, and 
there place the generator. It is true that in a fumigation house 
packed full or partly full of trees the gas surrounding them 
would be much stronger than were the same amount generated 
in the same space empty, so that the manner of diffusion of the 
gas of a given strength in an empty room would not neces¬ 
sarily apply to it when full of trees. But on the other hand, it 
must be evident that the diffusion of gas will be much slower 
where the currents of gas and air are impeded by the room 
being packed full of trees, so that these two considerations 
more or less balance each other. It must be evident then that 
if the gas generated in one corner of a room lequires 37 
minutes to kill a guinea pig, it will not kill the San Jose scale, 
or other scale insects, which are much harder to kill, in 30 
minutes, which is the time often allowed by nurserymen when 
rushed, and it is exceedingly doubtful whether it would be so 
under such conditions in 45 minutes. 
“ Professor Webster was the first, I believe, to note the pos¬ 
sibility of incomplete diffusion on a solid floor and recom¬ 
mended the use of a slat floor, on which to place the trees, and 
devised an apparatus for dumping the cyanide into the gene¬ 
rator placed under the center of this slat floor. Fecently Pro¬ 
fessor Johnson has also recommended the use of a slat floor. 
The utility of this arrangement is readily seen from the above 
account of the poor diffusion of the gas when the generator is 
placed on a solid floor in the corner. Professor Webster in¬ 
forms me that most of the fumigation houses in Ohio are so 
made, and certainly all new houses should be so constructed to 
insure proper distribution of the gas. Indeed, old houses 
might be easily fitted with a slat floor above the present one, 
merely leaving room enough for the generator. 
Mr. Sanderson has devised a hood and tubes extending tiom 
it so as to send thie gas into the fumigating room from eight 
apertures at as many points under the slat floor. 
————-", 
Apple Trees. 
150,000 fine two year old trees. 
CHERRY TREES 
20,000 very fine one year and two year 
old trees. 
Keiffer Pear Trees. 
APPLE SEEDLINGS, JAPAN and 
FRENCH PEAR SEEDLINGS. 
Forestry Trees, all Sizes. 
GRAFTS MADE TO ORDER. 
All orders put up separate. 
Write for Prices. 
A. L. BROOKE, 
NORTH TOPEKA, 
Kansas. 
CALIFORNIA PRIVET. 
Two years, extra bushy plants, 2 to 3 ft.; one year, strong, and two 
year, 15 in. to 2 ft. All are well branched. 
Osage Orange, in quantity, low prices, one and two years. 
Seckle, Keiffer and Bartlett Pears, tine two and three years. 
Lombardy Poplar, 6 ft., fine; also 10 ft. and 14 ft. 
Carolina Poplar, 6 ft, 7 ft., 8. 10 and 14 ft 
Norway Maples, 4 ft., 6 ft., 8 ft , 9 ft , 10 and 11 ft., siocky. 
JOSIAH A. ROBERTS, - Malvern, Pa. 
CHARLES DETRICHE, Senior, 
ANGERS, FRANCE, 
Grower and Exporter of fruit tree StocKs, forest 
trees and Ornamentals. 
Extra Large Assortments of Shrubs. Conifers, etc. 
Prices on Application. 
JACKSON & PERKINS CO., remark , n . y . 
Sole Representatives for the United States. 
Mr. Detriche would be glad to receive any horticultural catalogues or 
papers. 
by the Giles County Nursery 
Co., Lynnville,Tenn., an assist¬ 
ant foreman. Reference re¬ 
quired. Address 
Giles County Nursery Co., Lynnville, Tenn. 
Elberta Peach Trees 
1 yr. 3 to 6 ft., by 100 
and K00 for sale, and 500 
2 to 21 feet. 
HICKS and BLACK ENGLISH MULBERRY-1 yr.. 4 to 5 ft., by 100. 
3 yr. late APrLES, mostly Winesap and York Imperial. 5 to 1 teet., by 
100 and 1000. Name price you will give Address 
EMPORIA NURSERIES, 
Emporia, Va. 
