The main journal of interest to us is Phil Trans: the Philosophical Transactions, which started publishing in 1665. Amongst more than eight thousand documents you can find the very papers in which William Hershel described his discovery of infrared:
- Investigation of the Powers of the Prismatic Colours to Heat and Illuminate Objects; With Remarks, That Prove the Different Refrangibility of Radiant Heat. To Which is Added, an Inquiry into the Method of Viewing the Sun Advantageously, with Telescopes of Large Apertures and High Magnifying Powers. Phil. Trans. R. Soc. Lond. 1800 90, 255-283
- Experiments on the Refrangibility of the Invisible Rays of the Sun, Phil. Trans. R. Soc. Lond. 1800 90, 284-292
Phil Trans was freely available during 2010 as this was the Royal Society's anniversary year, and access to the papers was very helpful to me when I worked on my history of infrared photography.
Many people believe that open access to scientific papers, many of which are reporting publicly funded research, is definitely something to encourage. The Royal Society says their decision is part of its 'ongoing commitment to open access in scientific publishing' and I salute that.