Garrett, A. E · London : Hodder and Stoughton · leaf 155
e fixed in an upright i)osition aretroublesome, unless a good source of light isalways at hand. It is also advisable to have acoarse rack adjustment (1), as well as the fineadjustment (2), as there is always the liabilityof the sliding tube working either too loosely orvice versa. The stand should… … ^^iwm<Aw L OF TEXTILE FIBRES 143 will soon determine the circumstances underwhich each should be used. It need hardly besaid that the object of this reflector is to throwthe light from the lamp or other source of lightup the tube of the instrument. The most important part of the apparatus isthe…
Textile fibers · Textile fabrics
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