I just realized that the Pali Text Society has provided free copies of their journal up to the year 2009.
Go to http://www.palitext.com/ , click publications on the left of the menu bar, click Journal of the Pali Text Society, click Journal of the Pali Text Society again on that page and scroll down to click on the volumes stretching over a century. For some reason the website’s url doesn’t change when you navigate, hence the directions here, although they’re likely unnecessary.