278 REVIEWS — PRINCIPLES OF ORGANIC ARCHITECTURE. 



1210 miles, and were distinctly heard at either end of the line." 

 The time occupied by the transmission of a signal throughout that 

 distance was only 0.8 of a second. The signals were based upon the 

 passage of stars across the field of a transit instrument fixed in the 

 meridian upon as solid a support as could possibly be obtained ; and 

 Lieut. Ashe was put to no little trouble in effecting this latter and most 

 essential point. The longitudes thus carefully ascertained, were found to 

 differ considerably from those previously admitted. The following are 

 those obtained by Lieut. Ashe, in hours, minutes, and seconds, west of 

 Greenwich : — Quebec, 4h. 44m. 49.02s. Montreal, 4h. 54m. 11.72s. 

 Ottawa, 5h. 2m. 48.29s. Kingston, 5h. 5m. 54.22s. Toronto (Mag- 

 netic Observatory), 5h. 17m. 33.43s. Collingwood, 5h. 20m. 50.53s. 

 Windsor, 5h. 32m. 8.023. Chicago, 5h, 50m. 30.54s. 



These determinations were made with a view to impart additional 

 accuracy to the large Map of Canada, on which the Geology of the 

 Province is now being laid down under the direction of Sir "William 

 Logan. Valuable, therefore, as this map will undoubtedly be to 

 geologists, and to all interested in the correct delineation of the physi- 

 cal structure of the country, its publication will also be of no common 

 value in a purely topographical point of view. 



E. J. G. 



The Master-Thunder's Tlan or the principles of organic architecture as 

 indicated in the topical forms of animals. By George Ogilvie, M.D., 

 Lecturer on the Institutes of Medicine, &c., in Marisehal College, 

 Aberdeen. London : Longmans. 1858, 8vo. 



Dr. Ogilvie has selected a subject upon which a good popular work 

 was undoubtedly wanted, to communicate not merely to the special 

 student of natural science, but to the intelligent and cultivated por- 

 tion of society generally, the splendid discoveries now recognized 

 among competent judges, of Owen and those who have laboured in 

 different departments in the same spirit : discoveries which have done 

 for Zoology, what Goethe, DeCandolle and others, did for Botany, 

 elevating its character as a philosophical study, and assisting the in- 

 quirer to appreciate not only the beautiful adaptations of particular 

 organisms to the cireumstances and wants of the creature, but also 



