C.—3A

PLATE 6. Groundwood Pulps, x 15.

Fig. V.— Tawa Groundwood Pulp. Great Western Paper Co., Ladysmith, Wisconsin. Sample taken 9th February, at 3 p.m., 105 minutes after sharpening grinder-stone.

Fig. IV.— Tawa Groundwood Pulp. Grinder-run No. 15. Classification: Below standard No. 4.

Fig. III.— Tawa Groundwood Pulp. Grinder-run No. 10. Classification: Below standard No. 4.

Fig. II.— Insignis- pine Groundwood Pulp. Grinder-run No. 8. Classification standard: Between standards No. 1 and No. 2.

Fig. I.— White-spruce Groundwood Pulp. Grinder-run No. 5. Classification standard: Equal to standard No. 2.

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