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Apparatus and Supplies
Microscopes and Slides—Prepared Slides, continued
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Plant Adaptations— ComparisetTM
Plants have evolved to exist in an amazing diversity of habitats—all of which present unique demands. This selection of four slides focuses on plant structures adapted to extremes of moisture. Structures are from xero­ phytic (low moisture) and hydrophytic (high mois­ ture) plants. Leaf cross sections from the creosote bush (a xerophyte) and the water lily (a hydrophyte) are compared, as are stem sections from Aloe (a succulent xerophyte) and Elodea (a hydrophyte).
Catalog No.
ML1401
Description
Plant Adaptations— ComparisetTM
Price/Each
$27.50
INVERTEBRATE ZOOLOGY
Specimens from nine major phyla of “animals without backbones.” The invertebrates demonstrate a progres­ sion of complexity leading from the simplest multi­cellular animals—the sponges—to the protochordates, evolutionary ancestors of the vertebrates.
Catalog No.
Description
Price/Each
PORIFERA (SPONGES)
ML1184 Scypha (grantia), c.s.
Section to show arrangement of canal system and location of choanocytes (collar cells).
$5.35
ML1185
Scypha, sec.
Composite of cross section and longitudinal section to show body and osculum.
6.95
ML1187
Leucosolenia, w.m.
Portion of a colony of a simple ascon type sponge.
8.35
ML1188
Spicules, w.m.
Several types of both calcareous and siliceous spicules.
4.75
CNIDARIA (HYDRA AND JELLY FISH)
ML1189
Hydra, w.m.
Specimen to show foot, stalk, and tentacles with nematocysts.
$ 5.55
ML1190
Hydra, c.s.
Section to show dermal layers: entoderm, mesoglea, and ectoderm.
5.70
ML1191
Hydra—budding, w.m.
To illustrate asexual reproduction.
5.95
ML1194
Hydra, sec.
Composite slide of both cross and longitudinal sections.
10.00
ML1195
Obelia, w.m.
Portion of hydroid colony to show vegetative and reproductive polyps.
7.15
ML1436
Aurelia, ephyra stage, w.m. Free­swimming stage.
9.15
PLATYHELMINTHES (FLATWORMS)
ML1197 Planaria, w.m.
Carbon “injected” to enhance visibility of digestive tract.
ML1200 Planaria, c.s.
Composite of sections through three regions including pharynx and intestinal regions— on one slide.
ML1205 Taenia, w.m.
Scolex, immature, mature, and gravid proglottids.
ML1207 Dipylidium caninum, w.m.
Composite slide of the dog tapeworm to show scolex, immature, mature, and gravid proglottids.
$ 5.60
8.50
43.15
27.70
ML1199
Planaria, w.m.
Composite, injected and non­injected on one slide.
8.20
ML1204
Schistosoma mansoni, Sec.
Section of mammalian liver infected with eggs.
11.25
Monocot vs. Dicot—ComparisetTM Four composite slides selected to vividly illustrate the fundamental differ­ ences between those two sub­groups of the flower­ ing plants. Cross sections of stems, roots, leaves, and flower buds contrast vascu­ lar tissue—arranged in a ring in dicots and scattered bundles in monocots; leaf veins—branched in dicots and parallel in monocots; and flower parts—dicots with four or five or multi­ ples thereof and monocots with three or multiples thereof.
Catalog No.
ML1394
Description
Monocot vs. Dicot— ComparisetTM
Price/Each
$29.70
ML1206
Taenia, w.m.
Mature and gravid proglottids only.
11.45
NEMATODA (ROUNDWORMS)
ML1208
Ascaris lumbricoides, c.s.
Parasitic nematode in humans, section through gonads of male.
$ 8.15
ML1213
Ancylostoma caninum, w.m.
Dog hookworm, preparation of female.
10.50
ML1215
Trichinella spiralis, w.m.
Causative agent of trichinosis, preparation of female specimen.
11.55
ML1216
Trichinella, sec.
Section through mammalian muscle to show encysted larvae.
8.80
MICROSCOPES AND SLIDES—PREPARED SLIDES continued on next page.