Pettigrew was deeply interested in natural science .
Was a keen botanist - entomologist , interested in the study of insects , birds , flowers , trees , architecture , church and school buildings , and Eurasian education .
Pettigrew was deeply interested in natural science , and was a keen botanist - entomologist , interested in the study of insects , birds , flowers , trees , architecture , church and school buildings , and Eurasian education .