3. Principles of cloth structure, and the mechanism required for the production of the following typical fabrics:--Plain cloth, twills, diapers, brocades, damasks, coloured stripes and checks, warp spots, repps, weft spots produced with circles, swivels or extra shuttles, backed cloths, double cloths, 3, 4, 5, &c., ply fabrics, tapestries, velveteens, cords, Terry fabrics, plain and figured gauze, lappets, plain and figured leno. 4. Principles of designing and card cutting involved in producing the above fabrics, giving preference to the actual designing and working of such patterns as shall be practically useful as articles of commerce. 5. Analysis of samples of woven fabrics to determine pattern, draft, tie-up, and counts of material used. 6. Composition of the various yarns used in the production of mixed fabrics. 7. Latent and other defects in fabrics caused by faulty construction and unequal balancing of warp and weft. 8. Selection of warp and weft yarns suitable for the fabrics required. 9. Proportioning of fabrics so as to maintain the original structure with an increased or diminished weight. 10. Method of calculating the cost of a fabric from given data of values of material and labour, by ascertaining the fibre, counts, ends, picks and weight. 11. Actual Weaving.--Each candidate will be required, during the year preceding the Examination, to design and execute in suitable material an original pattern, of not less than 200 ends and 200 picks in a complete pattern, and to forward the same (carriage paid) to London a fortnight prior to the day of the Examination, together with a certificate signed by his employer, or by the class teacher and a member of the School Committee, stating that the work has been executed by the candidate without assistance. The specimen of weaving, showing the complete pattern, must not be less than one yard in length and at least 24 inches in width: it must be properly dyed or finished, and constructed in such a manner as to be a saleable article. =II. Full Technological Certificate.=--The candidate, who is not otherwise qualified (see Regulations 33 and 34), will be required, for the full Certificate in the Ordinary Grade, to have passed the Science and Art Department’s Examination, in the Elementary Stage at least, and for the full Certificate in the Honours Grade, in the Advanced Stage at least, in _two_ of the following Science subjects:-- II. Machine Construction and Drawing. III. Building Construction. VI. Theoretical Mechanics. VII. Applied Mechanics. XV. Elementary Botany. Certificates, showing that the candidate has passed the Second Grade Examination of the Science and Art Department in Geometrical Drawing as well as in Freehand or Model Drawing, will be accepted in lieu of one of the above Science subjects for the full Technological Certificate in either grade of the Examination. [Illustration] GLOSSARY OF TRADE TERMS. _Am._--AMERICAN. _Sc._--SCOTCH.]