MATERIAL FOR LABORATORY ILLUSTRATION. 



HIGH SCHOOL BOTANICAL SET. 



Special net price, $20. Express extra. 



PERMANENT MOUNTS. 



Those on cards are protected with fly-leaf and placed together in 

 a neat portfolio. 



Pond scum (Spirogyra) on card $ .20 



Green felt (Vaucheria) on card 20 



Wheat rust (Puccinia), three stages, on card 30 



Carnation rust (Uromyces) on card 20 



Dodder (Cuscuta) on card 20 



Mildew (Uncinula) on card 20 



Lichen thallus on card 20 



Liverwort (Marchantia) thallus with gemmae and sexual organs on 



card :". -35 



Liverwort mature fruit (Sporogonia) carefully preserved in fluid 



for exhibition 75 



Moss (Polytrichum) male, female, and fruiting plant on card 35 



Fern (Polypodium) whole plant on card 10 



Horsetail (Equisetum) fertile and sterile plants on card 35 



Quillwort (Isoetes) whole plant on card 30 



Quillwort (Isoetes) plant in section preserved in fluid 45 



Pine male and female flowers and mature scale with seed on card .35 



Trillium mature plant on card 20 



Tooth wort (Dentaria) plant on card 20 



MICROSCOPIC PREPARATIONS. 



Corn cross- section of stem showing bundles 40 



Corn longitudinal section of stem showing bundles 40 



Sunflower cross-section of stem showing bundles 40 



Sunflower longitudinal section of stem showing bundles 40 



Caladium cross-section of leaf stalk showing bundles 40 



Celery cross -section of leaf stalk showing bundles 40 



Celery longitudinal section of leaf stalk showing bundles 40 



Ivy cross-section of leaf 40 



Begonia cross-section of leaf 40 



Pond scum (Spirogyra) in fruit 40 



Green felt (Vaucheria) in fruit 50 



Green felt (Vaucheria) sexual organs 50 



Black mould (Rhizopus) rhizoids, sporangia, and columella .... .50 

 Willow mildew (Uncinula) perithecia crushed and stained to show 



asci and spores 50 



Carnation rust sections showing haustoria 40 



Dodder ^Cuscuta) sections showing haustoria 40 



Wheat rust (Puccinia) sections of cluster cup 50 



Wheat rust (Puccinia) sections of red rust 50 



W T heat rust i Puccinia) spores of black rust 40 



$14.60 

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