Cleveite and other new Gas Lines in the Hottest Stars. 67 



7. The new series of probable hydrogen lines in £ Puppis most 

 likely represents the effect of a transcendental temperature. This 

 and the well-known series are in all probability of the subordinate 

 type, the lines of the principal series not yet having h 4 een identified 

 in stars. 



8. There is evidence which points to a higher temperature for 

 £" Puppis than for Bellatrix. 



9. The behaviour of certain lines suggests that Bellatrix may be 

 taken as a type of the hottest stars, while the behaviour of others 

 seems to indicate that a Orionis should be regarded as a star of the 

 very highest temperature, exception being made of £" Puppis. There 

 are not yet sufficient data to etiable a final statement to be made. 



"A Maya Calendar Inscription, interpreted by Goodman's 

 Tables." By Alfred P. Maudslay. Communicated by 

 F. Ducane Godman, F.K.S. Received April 2, — Read 

 June 17, 1897. 



[Introductory Note. 



Our knowledge of the Maya Calendar is chiefly derived from the 

 writings (a.d. 1566) of Diego de Landa, Bishop of Yucatan, who not 

 only gave some account of the divisions of time in nse among the 

 Mayas, but also copied, somewhat roughly, in his manuscript the 

 signs employed to represent the eighteen named months, and the 

 twenty named days into which each month was divided. 



Landa's statements are, however, by no means clear, and there has 

 been much discussion both as to their correctness in themselves and 

 as to the interpretation which has been given to them ; moreover, it 

 has been found difficult in some instances to identify the day and 

 month signs given by him with those used iD the Dresden Codex and 

 the few Maya manuscripts which have been preserved, and still more 

 difficult to identity them with the signs used in the carved inscrip- 

 tions. 



In the accompanying paper an examination is made of a recently 

 discovered inscription, by the aid of calendar tables prepared by Mr. 

 J. T. Groodman, and published with an explanatory essay in the 

 'Biologia Centrali- Americana.' These tables consist of a chrono- 

 logical and an annual calendar. The chronological calendar is based 

 on the Ahau, a period of 360 days, and is divided thus : — 



20 days 1 chuen 



18 chuens 1 ahau* (360 days) 



* It is unfortunate that the ahau, or period of 3(]0 days, bears the same name as 

 one of the twenty days of the Maya month, and that the chuen, or twenty-day 

 period, bears the name of another day of the month. 



VOL. LXII. G 



