Transcriber's Note:
The following typographical errors were corrected:
- [p. 10]: crackng to cracking (the cracking of jars)
- [p. 17]: 22 to 18 (see p. 18)
- [p. 19]: 17 to 13 (see p. 13)
- [p. 19]: 14 to 10 (See fruit pricker, p. 10.)
- [p. 20]: 18 to 14 (The data on page 14)
- [p. 21]: 14 to 10 (see p. 10)
- [p. 26]: crytallize to crystallize (to crystallize in time)
Irregularity in hyphenation (e.g. jelly-making vs. jelly making) and compound words (e.g. wash boiler vs. washboiler) has not been corrected.