1871. J J. Wood-Mason— On Indian and Malayan Tel phi si da. ~ 4-19 

 Error of Newman's No. 94 to the Kew and Greenwich Standards. 





Casella's 

 barometer. 



" ' 



With Kew. 



With GreenwicI . 





No. 



Inch. 



Inch. 



By 



628 



—.0155 



—.0 1 1 5 



55 



632 



—.0123 



—.0083 



55 



637 



— .0146 



—.0106 



55 



627 



—.0130 



—.0090 



55 



634 



—.0139 



—.0099 



55 



635 



—.0182 



—.0142 



55 



630 



—.0140 



—.0100 



55 



631 



—.0142 



—.0102 



If we reject the results afforded by barometers No. 632 and 

 No. 635 which depart somewhat widely from the remainder, the 

 mean of the remaining six comparisons gives the error of New- 

 man's No. 94 — .0142 to the Kew, and — .0102 to the Greenwich 

 Standard. Deducting these from the error, above given, of the 

 same barometer to the Calcutta Standard, and changing the sign, 

 we have the error of the Calcutta Standard as follows : — 

 Error of Calcutta Standard, Newman, No. 84. 

 To Kew. To Greenwich. 



+ .0109. + .0149. 



These amounts, or say .011 and .015 inch, must therefore be 

 deducted from the readings of the Calcutta Standard and all 

 registers corrected thereto, to render them comparable with re- 

 gisters corrected to the Kew and Greenwich Standards respectively. 



On Indian and Malayan Telphusid.e, Part I, — 



by James Wood-Mason, Esq. 



(Continued from page 2'. | 7). 



(With Plate XXVII). 



Telphtjsa Edwardsii, n. sp., pi. xxviii, figs. 11 — 15. 



Carapace sparingly hirsute above, more thickly so on the pleural 



region, broadest along a line dividing the anterior from the 



