3B Scientific - Biology Catalog

Microscopy Microscope Slides – Series
Pig Embryology (Sus scrofa)
10 preparations with accompanying guide.
For details, please go to www.3bscientific.com.
9982-1003987
Mitosis and Meiosis Set I
6 selected Microscope Slides. With depictured accompanying
brochure
1(d). Mitosis, l.s. from Allium root tips showing plant mitosis
stained with iron-hematoxyline 2(f). Mitotic stages in sec. of
red bone marrow 3(e). Meiotic and mitotic stages in sec. of
Salamandra testis 4(f). Lilium, anther t.s., microspore mother
cells showing telophase of first and prophase of second division
5(f). Giant chromosomes, smear from salivary gland of
Chironomus 6(f). Ascaris megalocephala embryology. Sec. of
uteri showing maturation stages.
9982-1013468
Mitosis and Meiosis Set II
5 selected Microscope Slides. With depictured accompanying
brochure
1(d). Mitosis, l.s. from Vicia faba (bean). root tips showing all
mitotic stages. Iron hematoxyline 2(f). Lilium, anther t.s.,
micro spore mother cells showing telophase of first and prophase
of second division 3(h). Mitotic stages in sec. of whitefish
blastula showing spindles 4(f). Spermatogenesis with
meiotic and mitotic stages, sec. of testis of grasshopper 5(g).
Paramaecium, in fission, nuclei stained.
9982-1013474
The Ascaris megalocephala Embryology
10 Microscope Slides. With depictured accompanying
brochure
1(d). Cell division in l.s. of Allium root tips, showing all mitotic
stages 2(e). Ascaris, primary germ cells in the growing zone
of oviduct 3(f). Ascaris, entrance of sperm in the oocytes
4(f). Ascaris, first and second maturation divisions in oocytes
I, 5(f). Ascaris, dito. in oocytes II 6(f). Ascaris, mature oocytes
with male and female pronuclei 7(f). Ascaris, early cleavage
stages 8(f). Ascaris, later cleavage stages 9(d). Ascaris, adult
female, t.s. in region of gonads 10(d). Ascaris, adult male
roundworm, t.s. in region of gonads.
9982-1013479
Development of the Microspore Mother
Cells of Lilium candidum
12 Microscope Slides. With depictured accompanying
brochure
1(e). Leptotene, the chromosomes appear as fine threads
2(e). Zygotene, the homologous chromosomes associate in
pairs 3(e). Pachytene, complete pairing of the chromosomes
4(e). Diplotene, shortening of the chromosomes by contraction.
Interchange of chromatin (crossing over) 5(e). Diakinesis,
further contraction of the bivalents 6(f). Metaphase and
anaphase of the first (heterotypic). division 7(f). Telophase of
the first and prophase of the second division 8(f). Metaphase
and anaphase of the second (homeotypic). division 9(f). Pollen
tetrads after the second division, each bearing the haploid
number of chromosomes 10(e). Uninucleate microspores
11(e). Mature two-nucleate pollen grains at the time of shedding
12(b). Mature pollen grains, w.m. to show structure of
the cell walls.
9982-1013484
ECOLOGY AND ENVIRONMENT
The Forest, Consequences of Pollution
20 Microscope Slides
1(c). Pine (Pinus), healthy leaves, t.s. 2(c). Pine (Pinus) leaves
damaged by acid rain, t.s. 3(c). Fir (Abies), healthy leaves, t.s.
4(c). Fir (Abies), stem tip damaged t.s. 5(c). Beech (Fagus),
healthy leaves t.s. 6(c). Beech (Fagus), t.s. of leaves with destroyed
epidermis and chloroplasts 7(d). Rhytisma acerinum,
tar spot of maples, consequence of single-crop farming 8(d).
Early leaf fall, caused by thawing salt 9(d). Healthy lichen,
indi cator of clean air 10(d). Damaged lichen, caused by air
pollution 11(c). Healthy wood of beech, t.s. 12(d). Wood destroyed
by fungus 13(d). Polyporus, wood rot fungus, fruiting
body t.s. 14(d). Root nodules of Alnus, with symbiotic bacteria
15(d). Spruce beetle (Cryphalus picea), larva t.s. 16(c).
Wood with normal annual rings, t.s. 17(c). Wood with anomalous
narrow annual rings caused by drought, t.s. 18(d). Bark
with larval galleries of spruce beetle, t.s. 19(d). Pineapple-like
gall on spruce caused by lice, t.s. 20(d). Gall nut on oak
caused by insects, t.s.
9982-1004256
Water Pollution, Problems and Results
20 Microscope Slides
1(d). Intestinal bacteria (Escherichia coli) from putrid water
2(e). Putrefactive bacteria (Spirillum) from sludge poor in
oxy gen 3(d). Putrefactive bacteria (Sphaerotilus) bacteria,
forming long chains 4(d). Sludge bacteria (Methanobacterium)
causing sewer gas 5(d). Sulphur bacteria (Thiocystis)
6(c). Cyanobacteria (Microcystis), blue-green algae “blooming”
in stagnant water 7(c). Anabaena, blue green algae, in
eutrophic water 8(c). Spirogyra, filamentous green alga in
nutrient-rich water 9(d). Spirulina, corkscrew-shaped algae
occurring in bitter seas 10(c). Chlamydomonas, one-celled
green alga in eutrophic water 11(c). Cladophora, green alga
from moderately polluted water 12(c). Diatoms, mixed algae
from scarcely polluted water 13(c). Euglena, green flagellates
occurring in stagnant eutrophic water 14(d). Ciliates, different
species from nutrient-rich water 15(d). Rotifers (Rotatoria),
small animals from putrid water 16(d). Tubifex, fresh
water oligo chaete, living in the sludge 17(d). Carchesium,
stalked ciliate from moderately polluted water 18(d). Water
mold (Saprolegnia), harmful to plants and animals 19(d).
Skin of fish injured by chemicals, t.s. 20(d). Skin ulcer of an
amphibian, t.s.
9982-1004257
Life in the Soil
17 Microscope Slides
1(d). Acidophile soil bacteria, solution of heavy metals 2(d).
Ni trite bacteria, forming harmful nitrogenous substances
3(d). Root of beech with ectotrophic mycorrhiza, t.s. 4(d).
Root of birch with partly endotrophic mycorrhiza, t.s. 5(d).
Root of lupin with symbiotic nitrogen fixing bacteria 6(d).
Netted venation, portion of rotted deciduous leaf 7(c). Charlock
(Sinapis), t.s. of stem. Green manure plant 8(d). Soil
bacteria (Bacillus megaterium), smear 9(d). Hyphae of root
fungi, t.s. 10(d). Lichen, indicator of clean air 11(c). Mushroom
(Xero comus), mycelium 12(c). Root of willow (Salix),
planting protecting against erosion 13(c). Earthworm
(Lumbri cus) t.s., causing soil improvement 14(d). Springtails
(Collembola), w.m. 15(d). Mite from forest soil, w.m. 16(c).
Con stitu ents of humus soil 17(c). Constituents of peaty soil.
9982-1004258
94 3B Scientific® Biology