JOURNAL 



OK THE 



ROYAL MICROSCOPICAL SOCIETY. 



FEBRUARY, 1915. 



TRANSACTIONS OF THE SOCIETY. 



I. — X-rays in Relation to Microscopy . 

 By J. E. Barnard. 



(Read December 16, 1914.) 

 Plate I and Fig. 1. 



In the Journal of this Society for August 1913 there appeared an 

 abstract of a paper by Pierre Goby on the radiography of micro- 

 scopic objects, the original of which appeared in the Comptes 

 Rendus previously. I read this paper with considerable interest, 

 but I must confess that I was disappointed to find that there was 

 little fresh information to be gained from it. There was much 

 unnecessary elaboration of apparatus, and essential practical details 

 were not described. I therefore came to the conclusion that the 



Note.— Since reading this paper, I find that in the Comptes Rendus for 

 January 25, 1897, Radiguet refers to the use of Rontgen rays for obtaining photo- 



EXPLANATION OF PLATE I. 



Fig- 1. — Cyclammina cancellata. x 25. This gives such a view of the labyrinthic 

 wall-structure as could otherwise have been demonstrated only by 

 means of thin sections. 



,, 2. — Operculina complanata. x 20. 



,, 3. — Orbiculina adunca. x 25. The species is normally opaque, and the 

 internal structure is barely visible by incident light. 



,, 4. — Astrorhiza arenaria. x 20. The branching tubular body-cavity is 

 perfectly displayed in spite of the thick encrusting sand of the tubes. 



,, 5. — Nodosaria sp. x i5. Illustrating the budding-on of successive cham- 

 bers ; the mouth of each chamber is seen visibly projecting through 

 the base of the next. 



,, 6. — Foraminifera as dredged (North Sea F.C. ' Goldseeker '). x 40. 



Feb. 17th, 1915 B 



