The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Programme of future exhibitions, SSSERC services
4(2) Reports summary
A summary of the various equipment reports published since SSSERC’s inception.
8(6) Transistor amplifier
A circuit is given for a low input impedance pre-amplifier suitable for working into an oscilloscope.
9(7) Display Laboratory
An updated list of the apparatus on display
10(8) Trade News
11(9) In The Workshop – mobile fume cupboard (Part 2)
Ne continue here the description of the mobile fume chamber which was started in Bulletin 43.
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Opinion
Metrication and SI units
3(1) Oxidation of ethanol
A safe method to oxidise ethanol to acetic acid by passing it over heated copper oxide.
5(3) Coddington lenses
We find some examples.
5(3) Gas analysis tubes
Gas analysis J-tubes is usually controlled by an OBA screws. We have a cheaper/simpler version.
5(3) Locust supply
We have locusts to spare.
6(4) Manometer liquid
A safer option is congo red in aqueous solution.
6(4) Test Reports
List of test reports on: microscopes, centrifuges, balances, Conductivity Apparatus and pH meters.
8(6) Trade News
10(8) In The Workshop – projection air table
The air table described is intended as a demonstration piece of apparatus for use with an overhead projector,.
12(10) Storage of connector leads
A suggestion for a rack for the storage of connecting leads.
13(11) Bulletin Supplement – microscopes
A summary of tests carried out on microscopes.
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Microscope testing
3(1) Chemical hazard
How to safely carry out the zinc-sulphur reaction.
5(3) Cost of gas preparation
The comparative costs of obtaining a sample of the commoner gases
5(3) Toluene, erratum
In Bulletin 41 we incorrectly referred to toluol rather than toluene.
5(3) Flame tests for halogen ion
The presence of a halogen element in organic compounds can sometimes be demonstrated by a simple flame test.
6(4) Gas storage and delivery
An aspirator can be used in conjunction with a polythene bag to give a controlled supply of dry air., or of any other gas.
6(4) Molecular weight determination
An alternative to the method described in Bulletin 21
7(5) specification and test procedure for H grade microscopes
The specification and test procedure for H and post-H grade microscopes replace those given in Bulletins 7, 9 and 11.
13(11) Trade news
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Upcoming exhibitions, Back numbers of bulletins
3(1) Opinion
In-service training
5(3) Surplus equipment available
7(5) Beat frequency experiment
A method for experimental verification that the beat frequency between two oscillations is the difference between the individual frequencies.
8(6) The school pond
A request for comments, specifications etc.
8(6) Microscope test procedure, correction.
A clarification and correction of the item in Bulletin 46.
9(7) Display Laboratory
Latest additions.
10(8) In The Workshop – polarimeter
A simple design for a DIY polarimeter.
12(10) Gas collector
A quick method of providing from gas generators of various types an individual pupil sample, usually in a test-tube.
13(11) Bulletin Supplement — stereomicroscopes
A summary of tests carried out on a selection of stereo-microscopes.
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Opinion
New schools
4(2) Mercury vapour hazard
We investigate the risk.
5(3) Specification and test procedure for ‘O’-grade microscopes
The specification and test procedure which follow will replace those originally laid down in Bulletins 7 and 9 for microscopes for ‘O’-grade work.
9(7) Reaction timing
Some biology teachers who wish a more exact or more sophisticated reaction timer than that described in Bulletin 9, may not be aware that the physics department of most schools will possess such an instrument, a scaler/timer.
9(7) Alkaline cell electrolyte
The recipe for the electrolyte used in alkaline accumulators, either nickel-iron or nickel-cadmium types.
9(7) In The Workshop – test-tube rack
A DIY test tube rack, made from sheet metal folded in a Z form.
11(9) Compensated respirometer
A design using two 20ml plastic syringes, the nozzles of which fit directly into three-way taps.
12(10) Polythene dip-coating
Details of a dip-coating process which covers metal objects with a layer of polythene
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Exhibitions
3(1) Velocity of sound in a rod
A method for determining the velocity of sound in a metal rod by investigating impact times.
7(5) pH meter
A summary of the Chandos A47 pH meter.
7(5) Reduction of metallic oxides
We think it worthwhile to give a reduction technique which uses hydrogen but does not have associated with it the dangers that hydrogen from cylinders or even the more conventional gas generators carries.
8(6) Spark generator
An E.H.T. generator based on a car ignition coil.
9(7) In The Workshop – aquarium aerator
A system of aquarium aeration which will operate off l2V.
13(11) Bulletin Supplement – pH meters
A summary of tests carried out on a selection of pH meters;
14(12) Address List
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Secondment of director
3(1) Gas analysis
Most teachers will have found that the J- capillary tube gives better results for gas analysis, and is easier to use, than the gas burette. We published a modification to the capillary tube in Bulletin 45; we have now simplified the whole analysis procedure further.
6(4) Test procedure correction
We mis-labelled a slide in Bulletin 48
6(4) Dissecting pins
Use syringe needles instead.
6(4) Aquaria for Xenopus
Use a polythene stackable tray as a heated water bath with two plastic aquaria containing the animals inside it.
7(5) Laboratory hazards
We ask for information of any incidents.
7(5) In The Workshop – wind direction recorder
Since weather fronts do not occur conveniently during school hours, a wind direction recorder is called for. We have a simple design.
12(10) Address List
13(11) Bulletin Index, Nos. 40 – 49.
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
Purchase and use of surplus equipment
4(2) Display Laboratory
New items on show.
5(3) Measurement of velocity of sound in a rod
An extension to the activity described in Bulletin 49.
5(3) Surplus equipment available
9(7) Stereo microscopes
Further comments.
10(8) Storage of pH electrodes
A simple way of avoiding them drying out.
10(8) Natural gas equipment
Satisfactory equipment availability.
11(9) Trade News
12(10) In the Workshop – U2 cell mount
Using a rectangular profile gutter pipe to make a mount for a U2 size cell.
13(11) Bulletin Supplement – pH meters
A summary of test reports on a selection of pH meters.
14(12) Addresses
The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)
3(1) Introduction
ASE Annual Meeting, holiday closures,
4(2) Opinion
Circulation of Bulletin in schools
4(2) Slides and transparencies for the new syllabus
We have drawn up the following lists of recommended. slides and transparencies for the new biology syllabus.
6(4) Injecting Xenopus laevis
Where to find instructions.
7(5) Test Procedure for Colorimeters
Our methodology for testing.
8(6) Gas chromatography
In Bulletin 39 we described an apparatus for gas chromatography. More developments
9(7) Relative weightlessness
A method for demonstrating relative weightlessness.
9(7) Current capacity of small NiFe cells
We investigate the current these cells can produce.
9(7) Sound through a vacuum
Does the classic bell in a jar experiment really mean what we think?
10(8) Pin Hole camera in reverse
An interesting optics item.
10(8) In the Workshop -Test tube racks
Improvements on the design from Bulletin 48.
11(9) In the Workshop -Gas pump for gas chromatography
An aquarium aerator pump of the diaphragm type in moulded plastic case can be converted quite easily for compression of gases as well as air.
11(9) In the Workshop – A microscope eyepiece pointer
Made from thin wire, e.g. 5A fuse wire.
12(10) Trade News
13(11) Bulletin Supplement – Slides and transparencies
14(12) Address List
