Another pamphlet, originally published in 1914 seems to be a review of the process. There is a similar review of the Latin experiment.
Educational experiments in secondary schools. 3, The teaching of Greek at the Perse School, Cambridge.
Author: Great Britain. Board of Education.
Publisher: London : H.M.S.O., 1914.
Series: Educational pamphlets, no. 28
For those who are interested, there is a 2010 reprint from Amazon. http://www.amazon.com/teaching-Greek-Perse-School-Cambridge/dp/1175370916
Also, some may be interested to know that W. H. D. Rouse's first and second year books have been reprinted and his first book thoroughly updated by Anne Mahoney (of Tufts University?) who also updated Morris' Stories in Attic Greek.
First Greek Course, Anne Mahoney 2011 http://www.amazon.com/First-Greek-Course-Anne-Mahoney/dp/1585103772/ref=pd_rhf_dp_p_img_3. The original book can be found at http://www.letsreadgreek.org/resources. Mahoney's book is several hundred pages longer than the original.
A Greek reader, W. H. D. Rouse 1914 http://www.amazon.com/Greek-reader-W-H-Rouse/dp/B005GVLZ5M/ref=pd_rhf_dp_p_img_4. The 1907 version can be found at Internet Archive: http://www.archive.org/details/greekreader00rousuoft
A Greek Boy at Home can be found on Internet Archive: http://www.archive.org/details/greekboyathomest01rousuoft. Anne Mahoney also revised it slightly. http://www.amazon.com/Rouses-Greek-Boy-Reader/dp/1585103241/ref=pd_sim_b_3