3. In collecting old glass he who “hesitates” has lost it to his neighbor. 4. Don’t believe all you hear—investigate. 5. Don’t collect EARLY “WOOLWORTH.” 6. Don’t let envy keep you from enjoying and studying another’s collection. 7. Don’t tell everybody what you are looking for, a rival collector is born every minute. 8. Don’t seek numbers of specimens, seek fine workmanship. 9. Don’t call everything that you cannot classify Canadian, English, or Spanish. Comparison of specimens and time will change your opinion. 10. Don’t quote prices for by so doing the market is ruined for both dealer and collector. The value is according to what you pay and to-morrow you may obtain the same piece for more or less. 11. Don’t keep your glass in a dark cup-board done up in paper. Let others enjoy the fruits of your labor. 12. Considering that everyone’s taste is not alike “an unfair exchange is no robbery.” 13. Don’t say a thing is “very rare” or “very common” remembering that what is rare in Pennsylvania may be common in Massachusetts. Most antiques depend upon locality for their rarity and your opinion may be very local. 14. Don’t subject old glass to very hot or very cold water in washing. Early Sandwich is subject to atmospheric conditions. Sudden changes of heat and cold will cause cracks. 15. Last and not least, don’t “hoard”; give the other collector a chance. By exchange and sale of specimens you will improve your own collection and if you help some one else to get what he wants it will come back to you ten fold in unexpected moments. An old house, old glass and old friends is a combination worth living for. _The End._ ------------------------------------------------------------------------ COLLECTOR’S DATA ------------------------------------------------------------------------ INDEX. _Page_ Bunker Hill group, 22-24-25 Candlesticks, 66 to 69 Colored cup plates, 51 Composition, 14 Conventional cup plates, 42 to 51 Cup plates, 18 to 51 Dolphin group, 68-70 to 73 Don’ts, 95-96 Eagle group, 20 to 22 Flat ware, 78 to 90 Floral group, 40-41 Harrison group, 30-34-35 Heart series, 42 to 49 Henry Clay group, 28-30-31 History, 7 to 10 Log Cabin group, 34 to 36 Miscellaneous cup plates, 38 to 41 Molds, 12-13 Notes for Collectors, 15 to 17 Petalled and Looped glass, 92-93 Preface, 5 Presentation pieces, 88-89-94 Pressed glass, 11 Ringgold, 30-32 Salts, 53 to 63 Ship group, 24 to 29 Victorian animals, 62 to 65 Washington cup plate, 30-32 Washington six-inch plate, 78-79 Whale oil lamps, 74 to 77 End of Project Gutenberg's Sandwich Glass, by Lenore Wheeler Williams