ART. 101] APPLICATION OF ARTICLE. 957

20. Manufacture of glass, glass products, glassware, porcelain or
pottery.

21. Iron, steel or metal foundries; rolling mills; manufacture of
castings, forgings, heavy engines, locomotives, machinery, safes, anchors,
cables, rails, shafting, wires, tubing, pipes, sheet metal, boilers, fur-
naces, stoves, structural steel, iron or metal.

22. Operation and repair of stationary engines and boilers, not in-
cluded in other paragraphs of this section.

23. Manufacture of small castings or forgings, metal wares, instru-
ments, utensils and articles, hardware, nails, wire goods, screens, bolts,
metal beds, sanitary, water, gas or electric fixtures, light machines,
type-writers, cash registers, adding machines, carriage mountings,
bicycles, metal toys, tools, cutlery, instruments, photographic cameras
and supplies, sheet metal products, buttons.

24. Manufacture of agricultural implements, threshing machines,
traction engines, wagons, carriages, sleighs, vehicles, automobiles, motor
trucks, toy wagons, sleighs or baby carriages.

25. Manufacture of explosive and dangerous chemicals, corrosive
acids or salts, ammonia, gasoline, petroleum, petroleum products, cellu-
loid, gas, charcoal, gunpowder or ammunition.

26. Manufacture of paint, color, varnish, oil, japans, turpentine,
printing ink, printers' rollers, tar, tarred, pitched or asphalted paper.

27. Distilleries, breweries; manufacture of spirituous or malt liquors,
alcohol, wine, mineral water or soda waters.

28. Manufacture of drugs and chemicals, not specified in paragraph
25, medicines, dyes, extracts, pharmaceutical or toilet preparations,
soaps, candles, perfumes, non-corrosive acids or chemical preparations,
fertilizers, including garbage disposal plants; shoe-blacking or polish.

29. Milling; manufacture of cereals or cattle foods, warehousing;
storage; operation of grain elevators.

30. Packing houses, abattoirs, manufacture or preparation of meats
or meat products or glue.

31. Tanneries.

32. Manufacture of leather goods and products, belting, saddlery,
harness, trunks, valises, boots, shoes, belting, saddlery, harness, trunks,
valises, boots, shoes, gloves, umbrellas, rubber goods, rubber shoes, tub-
ing, tires or hose.

33. Canning or preparation of fruit, vegetables, fish or. foodstuffs;
pickle factories and sugar refineries.

34. Bakeries, including manufacture of crackers and biscuits, manu-
facture of confectionery, spices or condiments.

35. Manufacture of tobacco, cigars, cigarettes or tobacco products.

36. Manufacture of cordage, ropes, fibre, brooms or brushes; manilla
or hemp products.

37. Flax mills; manufacture of textiles or fabrics, spinning, weav-
ing and knitting manufactories; manufacture of yarn, thread, hosiery,
cloth, blankets, carpets, canvas, bags, shoddy or felt