Thanks to all who responded to my inquiry. My aim in asking about the J-sources was really to get more information on the sources themselves. I understand that all the J-sources are relatively modern and translations from GREEK into other languages, mainly Hebrew (except the debatable example of J2, Shem-tov's Hebrew Matthew). I guess what I was looking for can be more clearly seen in the following example:
In the "Textual Symbols" section of The New World Translation of the Holy Scriptures it says this concerning J9:
"Gospels, Heb. and Lat., by Giovanni Battista Jona, Rome, 1668"
This is a little vague. The section "Explanation of Symbols" in The New World Translation of the Christian Greek Scriptures gives a little more detail:
"Gospels in Hebrew. In 1639 John Baptist Jonah, a Jew who joined the Roman Catholic Church, completed his translation of the four Gospels into Hebrew from the Latin Vulgate. Jonah was a professor of Hebrew in the Roman Academy, Rome. His Hebrew translation was finally published in Rome in 1668 by the Sacred Congregation of Propaganda (S.C. Prop. Fidei). It contained a page of dedication to Pope Clement IX."
Neither of these, however, gives the exact title of the book. Fortunately, however, with the available information we can figure out the work referred to is:
Iona, Ioanne Baptista. Arba?a abne hag-giljonim me-hat-Tora ha-?adaša ašär nä?taqu mil-lešon romi lel-lešon ?ibri, Qvatvor Evangelia Novi Testamenti Ex Latino in Hebraicum fermonem verfa. Rome: S. C. Prop. Fidei, 1668.
Some of the books referred to, however, have not been as easy to figure out. For example, I have been unable to find out any further information on either the old and new J19 (this source was changed in 1984 to a different book). Thus, I was hoping someone out there had exact information on J-sources of these kind.
Secondly, I was wondering if anyone had any of the J-sources available. I myself have on hand J1, J2, J4, J17, J21, J24, and J25. I was wondering if anyone else had some of these sources on hand or available in PDF / scanned form.
Mebaqqer