October 9th, 1899 letter from George Scherff to Nikola Tesla

New York, Oct. 9th, 1899
46 & 48 E. Houston Street

Nikola Tesla, Esq.,
Colorado Springs, Colo.

Dear Mr. Tesla:

Your telegram inquiring about the resistances, battery box and clockwork was received this afternoon.

One of the clockworks was expressed to-day, together with two coherers, one of aluminum and one of brass, like the previous ones, and a pin for adjusting the set screws of the rocker arm. Mr. Uhlman says he was obliged to follow this construction, because the contact of the spring on the end of the coherer was not sufficient to stop the clockwork, even under pressure, and platinum contacts had to be inserted in the ends of the coherers, as the blunt contact soon became covered and non-conducting. The magnets of the sounder are wound with No. 34 wire, as directed.

The resistances are being wound and will be sent off to-morrow; the battery box, Mr. Uhlman thinks, will be ready on Wednesday. Mr. Merckling will bring the box tomorrow.

Mr. Uhlman says he will await further instructions in regard to the point receiver. He has made a design with adjustable points and adjustable vacuum, but no work has been done on it in the shop.

Permit me to inquire again about your health. I hope the report in this morning's Herald is not true, though I fear very much that it is only too well founded.

Respectfully,
Geo. Scherff