WCP2880

[1]

90, Upper Tulse Hill. S.W.

Aug[us]^t 9 1907

Dear Dr. Wallace,

I should be very pleased to be of service to you, but I do not see my way to give the time necessary for the rather complex problems which have to be considered in respect of Mars.

I may say that, notwithstanding the difficulties of the view, the impression left upon me by my early [2] observations, visual and spectroscopic, is that the white cap must be ice and not carbonic acid.

I am sure everything you write will be carefully considered and therefore of great value in the discussion.

Yours very truly | William Huggins [signature]¹