Page 223 - Demo

“Your Safer Source for Science” Prepared Slides Microscopes and Slides—Prepared Slides, continued
ML1022 Nostoc, sec . $4.85 Section through gelatinous matrix showing colonial filaments with heterocysts .
Mostly single-celled autotrophic and heterotrophic organisms that, as a group, exhibit remarkable variety in motility, life history and organization . For the sake of simplicity, the multi-cellular algae have been listed under this heading with the understanding that they are often grouped with the higher plants .
221
BACTERIA, continued
Catalog No.
Description
Price/Each
CYANOBACTERIA, continued
Protists— ComparisetTM
Examine the similarities and differences among the major groups of protists . The five slides selected include Euglena, a masti- gophoran (flagellate); Amoeba proteus, a sarco- dine; Stentor, a ciliate; Plasmodium, a parasitic sporozoan; and mixed freshwater diatoms, photo- synthetic chrysophytes . Relevant comparisons can be made with respect to motility, photosynthetic capability, life history, and subcellular structures . The diatoms are included as an intermediate form between protists and higher algae .
Catalog No.
ML1420
Description
Protists— ComparisetTM
Price/Each
$30.30
ML1024
Oscillatoria, w .m .
Unbranched cylindrical filaments .
5.00
PROTISTS
Catalog No.
Description
Price/Each
ML1026
Mixed protozoa, w .m .
Includes Amoeba, Paramecium, Euglena, and others .
$9.80
PSEUDOPODS
ML1027 Amoeba proteus, w .m .
Included are both floating and crawling forms with readily visible pseudopods and intracellular structures .
ML1029 Entamoeba histolytica, smear .
Trophozoites of this intestinal parasite, a causative agent of amoebic dysentery .
ML1032 Radiolaria, w .m .
The ornate skeletons of these protists are a primary constituent of oceanic sediments .
$ 6.50
14.90
5.55
ML1028
Chaos carolinensis, w .m .
The giant amoeba, with multiple nuclei .
6.10
ML1031
Foraminifera.
The cleaned shells of several species from oceanic sediments .
5.60
CILIATES
ML1034
Paramecium caudatum, w .m .
A number of individuals stained to show large macronucleus and single, small micronucleus .
$ 4.10
ML1035
Paramecium caudatum, w .m . Conjugating pairs .
10.45
ML1036
Paramecium multimicronucleatum, w .m .
This large species has a single macronucleus and several micronuclei .
5.10
ML1037
Paramecium, fission, w .m .
A large number of individuals with several specimens undergoing fission . Nuclei stained .
13.35
ML1039
Stentor, w .m .
Trumpet-shaped organism with a distinctive beaded nucleus .
7.70
ML1040
Vorticella, w .m .
Bell-shaped ciliate with a contractile stalk which coils and extends like a spring .
9.60
APICOMPLEXA (SPOROZOANS)
Prokaryotes vs. Eukaryotes— ComparisetTM
At the cellular level, living things can be divided into two basic groups: the prokary- otes—without a distinct nucleus and membrane- bound organelles, and the eukaryotes—cells which do possess a distinct nucleus and membrane bound organelles . In this set the prokaryotes are represented by the cyano- bacterium Gloeocapsa and by bacteria—three forms mixed . The eukaryotes are represented by the evolu- tionarily intermediate Euglena and by the large and easily studied liver cells of the Congo eel Amphiuma; four slides total .
Catalog No.
ML1393
Description
Prokaryotes vs. Eukaryotes— ComparisetTM
Price/Each
$19.80
ML1042 Plasmodium sp., smear .
Red blood cells infected by trophozoites (including ring forms) are clearly visible in this malarial preparation .
ML1055 Mixed green algae, w .m .
Composite slide of five or more common species .
$13.00
$4.85
EUGLENOZOA
ML1044
Euglena, w .m .
Specimens of this unique and difficult-to-classify organism clearly show all major structures .
$4.60
GREEN ALGAE
ML1045
Chlamydomonas, w .m .
Single-celled, biflagellate, photosynthetic organism often grouped with the green algae .
4.60
ML1059
Oedogonium, w .m .
Common in freshwater, forms unbranched filaments with distinctive reproductive cells .
7.55
MICROSCOPES AND SLIDES—PREPARED SLIDES continued on next page.