9 
C. WATSON, PHILADELPHIA, TRADE LIST, SPRING, 1902. 
Watson’s “Prolific” 
GENUINE ENGLISH MUSHROOM SPAWN 
GENUINE 
BRAND 
FOR RESULTS 
Guaranteed Fresh and Full Spawned 
As is well known, good spawn is one of tlie chief foundation 
stones in successful mushroom culture and should receive the 
first attention. Much better spawn can be got to day than twelve 
years ago when the Watson Brand was first put on the market, 
but this improvement has been brought about largely through the 
educative influence and the liberal advertising given to a superior 
article. Although spawn closely approaching the Watson in 
quality can be got from one or two sources to-day, it is still true 
that none of them are equal in two important respects: (i) yield 
and (2) earliness. The Watson has been tried again and again 
alongside the most highly lauded and has proven the heaviest 
-■ - cropper, and the earliest to come into bearing. Another reform 
in which the Watson Brand was the pioneer is the cost of spawn. Absurdly high prices were 
the rule until a more reasonable and equitable figure was forced on Ihe most conservative by the 
example of a first-class brand being sold at a fair price. Notwithstanding the keen competition 
of to-day the Watson Brand figures are as low as any reliable stock can be bought for, while 
the quality is of the same high standard as heretofore. This being granted it follows that 
mushroom growers should procure their spawn from the pioneer in “a good article at a fair 
price” and take no chances with importers of less experience. 
Note my low prices: 
per brick, 25c.; 5 for $ 1 . 00 . 
25 pounds, f2.r0; 50 pounds, $3.50; too pounds, $7.00. 
Special rates for larger qualities. By mail, postpaid, 
Books on Mushroom Culture 
Falconer. The Standard American work on this subject; 170 pages, finely illustrated; 
treats exhaustively of those who should grow mushrooms; growing mushrooms in cellars; in 
mushroom houses; in sheds; in greenhouses; in the fields; of manure for mushroom beds and 
its preparation; making the mushroom beds; Spawn and spawning; loam for the beds and 
earthing over; temperature; watering; gathering and marketing; re-invigorating old beds; 
insect and other enemies; culture out of doors; cooking, etc. 
By mail postpaid, on receipt of price, $1.00 
Robinson. A book of 172 pages, freely illustrated, tells where mushrooms may be grown, 
and treats fully on mushroom culture in the mushroom house, the preparation of materials. 
Spawn, spawning and after treatment; culture in sheds, cellars, arches, outhouses and all inclosed 
structures; cave culture of mushrooms, near Paris; culture on prepared beds in the open air in 
gardens and fields; culture in gardens with other crops in the open air; culture in pastures. 
Gives illustrated and descriptive list of varieties of mushrooms and other edible fungi, modes of 
cooking, etc. 
By mail postpaid, on receipt of price, 65c. 
W atson. A little booklet of 24 pages containing in a condensed form practical instructions 
for raising mushrooms successfully. Ten cents. 
Free to buyers or intending buyers 
