74 EJNAR MIKKELSEN. 
Remarks to the chart. 
Plate I. 
The route from Dronning Louise’s Land, across the Inlandice to 
Fyen’s Lake, is laid down on a basis of 5 sets of longitudes and 6 sets of 
latitudes. These observations were taken with a theodolite, fitted with 
two levels, which the Navy Department had been kind enough to lend 
to the expedition. The observations are taken in sets with the tele- 
scope placed alternately on the right and left. 
Three Waltham Watches were carried as time-pieces, and each watch 
had its individual furbag suspended from a string around the neck of 
the man, who carried the watches, and against his bare breast where 
the temperature was nearly constant. The watches were only taken out 
of their small furbags for winding and comparison. The rate of these 
watches had been carefully observed while onboard the ship, and two 
of the watches had been carried on the Lambert’s Land trip, where there 
was an opportunity — by comparing them with the chronometer of 
the ship before and after the voyage — to determine their daily rate 
under circumstances, which were nearly similar to those on the Inlandice. 
A comparison of all three watches with the chronometer of the 
ship was made just before leaving the “Alabama”, and the rate of our 
watches, as well as those of Laus, was nearly constant until April the 
8th, when my three watches unfortunately ran out. It was however 
on the day before leaving the support-party, and we could obtain a 
new good error to Greenwich time, before parting company with LauB, 
through comparing them with his watch. 
The rate of one of the watches changed however very much during 
the days following this last comparison, and the watch did not become 
normal till 3—4 days later. It was however as yet possible to get a 
good sun-azimuth to Cape Bellevue on Dronning Louise’s Land, and a 
new and final error was thus found. А time-observation for determining 
the error was again made at Cape Rigsdagen, and the error used for the 
observation in between these two places is found through interpolation. 
A daily record of the rate and a comparison of the watches was kept 
up all the way from Shannon Island to beyond Cape Rigsdagen. 
The main points of the route across the Inlandice are thus based 
on rather good observations. The daily course was approximately set 
by means of rough bearings to the sun, the true bearing of which was 
estimated according to the true time of the place, known from the last 
observation of latitude, with due allowance made for the change in time 
while travelling on a westerly course — as a rule true N by W or NNW. 
Our compasses could not be used for determining the course, аз. 
they — we carried two — were very slushy, and consequently on days. 
when the sun was invisible, the route was entirely laid out at a certain 
angle to the sastrugi, the permanent direction of which was NNW— 
SSE true. 
