A guide to pollen- and seed-cone morphology of black spruce, white spruce, jack pine and eastern white pine for controlled pollinationRong H. Ho · First published 1991Open the Tome
The influence of nitrogen, phosphorus, potassium, and magnesium deficiencies on the growth and development of white spruce, black spruce, jack pine, and Western hemlock seedlings grown in a controlled environmentH. Stewart D. Swan · First published 1960Open the Tome
Jack in a white squall, amongst breakers - on the lee shore of st CatherinesWilliam Elmes · First published 1811Open the Tome
