Harry was King Henry; a groat was an old English silver coin, first coined by Henry III in 1249, and by Edward III in 1351. Originally worth one penny, it later rose to the value of fourpence. The groat was revived between 1836 and 1856, and withdrawn from circulation in 1887 (from Collins New Age Encyclopedia, 1963).
Page 104: Pr. Rob. Dog corrected to Pr. Rup. Dog (printer's error).
Page 147: 'I'l.' sic. "and therefore I'l. light."
Page 150: 'I, i and J, j were often interchangeable:
Puss my aple gainst thy mouse jle lay The gam's mine jf thast ne'r a trump to play
would perhaps today be written
Puss my apple 'gainst thy mouse I'll lay The game's mine if thou hast ne'er a trump to play
but this book is 17th century....
Page 182: 'of his freind'. "Freind" was a normal 17th century spelling of 'friend'.
Page 268: [94*.] is as printed. The reason for the asterisk is unclear.