CONTENTS. 



PART I. (1896-97.) 



NUMBER PAGE 



I. On some Type Specimens of Lepidoptera and Coleoptera in the Edinburgh 

 Museum of Science and Art. By Percy Hall Grimshaw, F.E.S., 

 Natural History Department, Edinburgh Museum of Science and 

 Art. Communicated by Dr K. H. Traquair, F.RS. (With a Plate), 1 



II. On a Melanic Specimen of Hestina nama, Doubleday. By Percy Hall 

 Grimshaw, F.E.S. Communicated by Dr R H. Traquair, F.RS. 

 (With figure on Plate of previous Paper), . . . .13 



III. On some Nuclei of Cloudy Condensation. By John Aitken, F.RS. 



(With a Plate), ....... 15 



IV. The C Discriminant as an Envelope. By James A. Macdonald, M.A., 



B.Sc, 27 



V. On the Fossil Flora of the Yorkshire Coal Field. (Second Paper.) By 



Eobert Kidston, F.RS.K, F.G.S. (With Three Plates), . . 33 



VI. The Meteorology of Edinburgh. (Part II.) By Robert C. Mossman, 



F.RS.K, F.R Met. Soc. (With Four Plates), ... 63 



VII. The Automorphic Linear Transformation of a Quadric. By Thomas 



Muir, LL.D., ........ 209 



VIII. A Contribution to the Comparative Anatomy of the Mammalian Organ 

 of Jacobson. By R. Broom, M.D., B.Sc. Communicated by Sir Wm. 

 Turner. (With Two Plates), . . . . .231 



