Page 143 - Demo

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Microscope Slides
141
Microscopes and Slides—Prepared Slides, continued
INVERTEBRATE ZOOLOGY, continued
Catalog No.
Description
Price/Each
ANNELIDA (SEGMENTED WORMS)
ML1217
ML1229
ML1231
ML1236
ML1240
Lumbricus terrestris, c.s.
Earthworm, section posterior to clitellum.
Dermacentor variabilis, w.m. Specimen of the common dog tick.
Daphnia, w.m.
The common water­flea.
Insect wings, w.m.
Composite, four types of wings on one slide.
Human louse, w.m.
Pediculus humanis, for morphology.
Pedicellariae, w.m.
Jawlike appendages used for defense by sea stars and urchins.
Sea Star development, w.m.
All stages from unfertilized egg to bipinnaria, inclusive.
$7.15
$13.30
$6.00
$ 9.60
$8.65
ML1221
Lumbricus, c.s.
Composite, sections through two regions: one through intestinal region, the other showing seminal vesicles and esophagus.
8.40
ARTHROPODA (ARACHNIDS)
Parasites— ComparisetTM
A morbidly fascinating springboard to some very basic ideas about evolu­ tion, parasitism can be a marvelous teaching tool. A few of the mechanisms by which some organ­ isms have evolved to make their living at others’ expense are presented here. Plasmodium, the causative agent of malaria, is shown infecting red blood cells. The fungus Puccinia, the cause of wheat rust, is seen on a cross section of its host plant. Trichinella, the agent of trichinosis, is examined encysted in mammalian muscle tissue. And the human louse, Pediculus humanis, is viewed in its entirety—grasping appen­ dages poised.
Catalog No.
ML1402
Description
Parasites— ComparisetTM
Price/Each
$34.50
ML1230
Mite, w.m.
Specimen to show morphology.
5.35
ML1433
Spider, w.m. Young specimen.
9.70
ARTHROPODA (CRUSTACEANS)
ML1233
Copepod, w.m.
Specimen of a common species, usually Cyclops. Copepods are present in virtually all zooplankton assemblages and as primary consumers are a vital constituent of aquatic ecosystems.
5.40
ML1235
Zooplankton, w.m. Mixed species.
9.90
ARTHROPODA (INSECTS)
ML1237
Insect legs, w.m.
Composite, multiple types of legs on one slide.
12.45
ARTHROPODA (INSECTS), continued
ML1241
Drosophila, w.m.
Male and female, excellent preparation for comparing the secondary sexual character­ istics of the ubiquitous fruit fly.
8.50
ML1243
Mosquito (Culex sp.), w.m.
Female specimen of the all too common pest. Female possesses proboscis used to extract blood­meal.
8.30
ML1244
Flea, w.m.
Dog or cat flea.
5.65
ECHINODERMATA
ML1405
ML1246
$ 6.35
13.95
ML1245
Sea Star ray, c.s.
Section through sea star ray (arm) to show digestive gland and external structures.
8.40
LANCELETS
ML1252
Amphioxus, w.m.
Preparation of a small specimen.
$11.10
MICROSCOPES AND SLIDES—PREPARED SLIDES continued on next page.