Real 2-Way Telephones
Young Engineers Want Erector Sets from Hall of Science
$279
Why shout? Why
$139
walk-when you
can talk from room
-$f1ff"G~:~f;:er
$1495
..$fSo""
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$1198
.sff)95-
~!:ct~:::;
$879
Cradle Type to room, from Wall Type
house to barn,
110..120-Volt Electrio Motor
With 110·Volt
Mot.orSet with 110-Volt Motor
Builds 011er 200 working models,
BJiilds
over 180 action 1nodels.
Builds over 160 large actirm
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1
::;;;si~~r~'t~pict~:
etc. on these real, battE'ry operated
telephones! Practical, lots of fun!
Master Cradle Phones
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Automotive parts, electric mag-
lifting. No batteries or trans-
brass trimmed steel
cabinet-
net, disc wheels, 2 boilers, girders,
formers needed. Packed in steel
keeps parts in orderly fashion.
gears. ete. Steel carrying cabinet.
cabinet. Shipping weight, 19 lbs.
Shipping weight, 16 pounds.
79N04607-Sh
~g.wt.,is1bs.$14.95
79 N &4785 ........... $11.98
79 N 04784.: .......... $8.79
49 N462B-Shpg.
wt., 3 lbs. 12
oz. $2.79
20
N
4664-Flashlight Batteries.
Shpg.
wt.,
ea.,
S
oz.
Each...........4c
Low Price 2-Way Wall Phones
@
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6
ax~~ ~~~sh S~i~~
ope~ates
signal coil.
With 50
ft.
bell
wire. Requires 2 dry cells, listed below.
49 N 4605-Shpg.
wt.,
2
lbs.....
$1.39
~~b~.4l0
0
~-:-
:D.ry.
C.•11.•:.
~b.p\;~"~;;
110-Volt Motor Set
Boller, G-r Box
Builds over 125 models:
locomotives, etc. No bat–
teries or transformers
needed. Sturdy steel
cabinet. Shipping weight,
12 pounds.
79 N 04783...... $8.79
Battery
Motor Set
Builds JOO models.
Use
dry cells or trans–
former (not included).
Reversing gear box.
Box.
18x.10x2%
In.
Sbpg.
wt.,
6
lbs.
79 N 04780 ... $3.98
Explore the Wonders of Modern Chemistry with CHEMCRAFT
Perform Hundreds of Experiments with Non-Dangerous Chemlcal1
The
lad
who "plays'' with chemiStry today
growing field of opportunity. Helps in school-
may work with it
tomorrow!
It's an ever-
work, too-and is fascinating fun besides!
$2 Beginner•' Set
$5 Laboratory Cabinet
$10 Profeulonal Type
Ov<;r
270
ex-
$179
New illustrators
$445
New illustrat'!rs
$895
gh;:ni:;J':U!;i~
~~i':i'bh~e
0
we1~~
~r;1':s~a161 P~~~~
stunts. 35 chemicals,
pcs.
ments
into
compounds.
450
chemicals,
apparatus. 4 man-
appara
tus.
2 manuals.
experiments.
62 pcs. chemi-
uals.
640 erperime
·n.ts.
in-
Hinged cardboard
box,
cals, equipment.
Wood
clu~ing
chemical magic
and
17~x12x1~
Inches. Ship-
cabinet, 30x14% in. open. 2
electrolysis.
Wood
cabinet,
~~~w4~gahat:.~ -~~~~~S·1.
1s
79ntY~t7if~~: -~·: .~ ~~~4s j~·~~~7~2~Wt~!10
"ibs.sa.ssGirder Set
Bullda 75 Model•
-$fS&-
$198
Fine
"starting..
set
for
:~~~u~oY~:for.ena~~:
ders, red wheels all in
colorful
box, 18x.10x*
In.
Sbpg.
wt.,
4 lbs.
49 N
~781
..... $1.98
Beglnn•r•'
Bulld1 50 Model1
Builds
battleships,
wagons, etc. No motor.
Pu11eys,
wheels, gir–
ders in colorful box,
11"2 In. long. Ship–
ping weight,
2
pounds.
49 N 4786 ....... 790
Giibert Polaroid Microscope Sets
With Electric Sub-Stage Lighting
See
actual colors
and
structures
of
objects
in~
visible
to the
unaided eye. Instructions.
3-Lens Microscope
200-Power 'Scope
SO, 90 and
$445
With
tilt-
$298
210-power.
ing
device.
38 pieces
.
'21 Pieces
apparatus:
mirror,
slides,
equipment:
slides,
chemicals, etc. 213 ex- chemicals, etc. Ship–
periments. Wt., 4 lbs. 12 oz. ping weight, 2
lbs.
8 oz.
49 N 4746.... . .. $4.45 49 N 4745 ..... $2.98
Q
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91
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