G. LINDSTRÖM.

WITH SIX PLATS

COMMUNICATED TO THE ROYAL SWEDISH ACADEMY OF SCIENCES

SEPTEMBER 12TH 1900.

STOCKHOLM

KUNGL. BOKTRYCKERIET. P. A. NORSTEDT & SÖNER

1901.

CONTENTS.

IntroductionPage[6].
Blind Trilobites»[9].
The eyes of the trilobites» [26].
On the maculæ of the hypostoma»[35].
Conclusions»[71].
Explanation of the plates»[75].