TABLE OF CONTENTSCHAPTER IIMPORTANCE OF THE INDUSTRYGlue industry founded in America by Peter Cooper — increase in capital invested — increase in production — variety of uses — increase in requirementsPage 15CHAPTER IITHE MANUFACTURE OF GLUESources from which glue is made — boiling the stock — drying — preparation in commercial formPage 17CHAPTER IIITESTING AND GRADING GLUEGrades established by Peter Cooper — the tests — viscosity or fluidity test — the jelly test — apparatus for making jelly test — the finger test — a simple, practical test for glue users — sampling — bubbles — surface indications — color indications — alkaline or acid quality — breaking quality — foam — grease — keeping properties — odor — laboratory testPage 25CHAPTER IVCORRECT METHODS IN THE GLUE-ROOMMuch waste through faulty methods — importance of correct practice — soak glue in cold water before melting — test glue bywater absorption — appliance for water absorption test — melting or dissolving glue — do not heat higher than 150°F.— apply heat indirectly — live steam ruins glue — use thermometer — heat glue slowly — cleaning the melting pot — importance of using copper, brass or aluminum utensils — guard against evaporation — melt only the amount required — importance of cleanliness — keeping the glue-room warm — use by weight — storing — applying glue — securing workers’ co-operationPage 43CHAPTER VMODERN GLUE-ROOM EQUIPMENTModern appliances now available for all users — only copper, brass or aluminum should come in contact with glue — the scientific glue-heater — the automatic temperature controller — keep steam away from glue — glue spreaders — clamps and presses — distributing glue in large plantsPage 65CHAPTER VIWHICH GLUE TO USEAccurate records important — the best glue for wood joints — veneers — sizing — paper boxes — belting and other leather goods — bookbinding — emery purposes — how much to pay — waterproof glue — vegetable glue — quick-setting glue — flexible gluePage 79